How do you factor x^2+13x+12? - Socratic
May 24, 2018 · #"the factors of + 12 which sum to + 13 are + 12 and + 1"# #x^2+13x+12=(x+12)(x+1)# Answer link. Jacobi J.
How do you solve the inequality 2x^3 + 13x^2 -8x - Socratic
Dec 15, 2015 · Here, a = 2, b = 17 and c = 26. x = (-b +- sqrt(b^2 - 4ac))/(2a) = (-17 +- sqrt(17^2 - 4*2*26))/(4) " "= (-17 +- 9)/4 Thus, your second and your third roots are x = -2 and x = - 13/2 ===== 3) Finding positive intervals of the polynomial Now that you have the three roots, you know that the function intercepts the x axis three times, at -13/2, -2 ...
How do you find the value of c that makes x^2-13x+c into a
Apr 13, 2017 · 169/4 Half the coefficient of x which would be -13/2 and then square it which would be 169/4 which 'c' should be equal to. The perfect square would be (x-13/2)^2
How do you find the limit of #(5x^2-8x-13)/(x^2-5)# as x
Mar 6, 2015 · Use the properties of limits. lim_(xrarr3)(x^2-5)=lim_(xrarr3)x^2-lim_(xrarr3)5 (Subtraction property) =(lim_(xrarr3)x)^2-lim_(xrarr3)5 (Power property) =3^2-5 (Limits of Identity and constant functions) =9-5=4 (Arithmetic) Because the limit of the denominator is not 0, we can use the quotient property for limits. By steps similar to those above, we can show that …
How do you factor 2x^{2}-13x+24? - Socratic
Aug 11, 2017 · Step 3: Divide the numbers by the leading coefficient (#2#) #(x-16/2)(x+3/2)# Step 4: If the numbers divide “evenly” then this is the factor. If the numbers canNOT divide evenly, then pull the divisor up to be the leading coefficient of the x term #(x-8)(2x+3)# If you want to find x value, you can use Zero Product Property (set each factor ...
How do you factor x^4 - 13x^2 - 30? - Socratic
x^4-13x^2-30 = (x^2-15)(x^2+2) = (x-sqrt(15))(x+sqrt(15))(x^2+2) x^4-13x^2-30 is quadratic in x^2. To factor it, first find a pair of factors of 30 whose difference is 13. Such a pair is 15 and 2. That gives us: x^4-13x^2-30 = (x^2-15)(x^2+2) The first of these quadratic factors can be considered a difference of squares: x^2-15 = x^2 - (sqrt(15))^2 = (x-sqrt(15))(x+sqrt(15)) using the ...
How do you factor x^-4 -13x^-2 +36 =0? - Socratic
May 6, 2015 · x=+-1/2, +-1/3 Multiply by x^4 to give 36x^4-13x^2+1 Solve using the quadratic formula for x^2 x^2=(13 ...
How do you factor x^3 + 13x^2 + 42x? - Socratic
Jul 4, 2016 · #= x [x^2 + 13x + 42]# Now getting the factors of 42 and seeing if the sum of its factors equals to 13 ( middle value). By getting its factors ( #7*6# = 42) we have come to know that 7 + 6 equals to 13.
How do you write 2y+3=-1/3(x-2) in standard form? - Socratic
Oct 21, 2017 · First, standard form is ax+by+c=0 In this question, we can expend the formula and rearrange it. You can try it first, and the steps are as follow: Step 1: Expend it 2y+3=-1/3x+2/3 As there are fraction in the formula and it doesn't look good, we can eliminate it by multiplyng 3. Step 2: Multiply by 3 6y+9=-1x+2 Step 3: Rearrange the terms x+6y+7=0 And we can get the …
How do you solve the quadratic using the quadratic formula given …
Feb 15, 2017 · +-2 i and +-3 i x^4 + 13 x^2 + 36=0 assuming y = x^2, (x^2)^2 + 13 x^2 + 6 =y^2+13y+36=0 using y = (-b +- sqrt(b^2-4ac))/(2a), where a=1, b=13 and c=36 y = (-13+-sqrt ...