2016年11月22日 · x=10 and y=-20 1. y=-5x+30 2. x=10 Since we know the value of x from the second equation, replace x in the ...

2018年4月23日 · 5x -5 = 30. Step one: add 5 to both sides: 5x = 35. Step two: divide both sides by 5: x =7. Step three: Check: 5(7)-5=30 quad sqrt.

2017年3月12日 · x >=6 Treat an inequality in the same way as an equation. (Unless you multiply of divide by a negative number) Isolate the variable x by dividing both sides by 5. 5x >=30 (5x)/5 >= 30/5 x >=6

2018年4月15日 · How do you factor #x^3+6x^2-5x-30#? Algebra Polynomials and Factoring Factoring by Grouping. 2 Answers

2x^2+5x-30 = 1/8(4x+5-sqrt(265))(4x+5+sqrt(265)) Complete the square, first premultiplying by 8 to cut down on fraction arithmetic, not forgetting to divide by 8 at ...

2015年10月4日 · The slope is 5/3. The y-intercept is -10. 5x-3y=30 is the standard form for a linear equation. The slope-intercept form is y=mx+b, where m is the slope, and b is the y-intercept. To convert from standard form to slope-intercept form, solve the standard form for y. 5x-3y=30 Subtract 5x from both sides of the equation. -3y=30-5x Divide both sides by -3. y=(30)/( …

2016年8月6日 · The x-intercept is + 6 and the y-intercept is + 10 (6,0) and (0,10) The x-intercept is the value for x when y=0, and the y- intercept is the value of y when x=0. Replace each variable in turn with 0 and solve. 5x + 3y = 30 Put zero in place of x and solve for y 5(0) + 3y = 30 (3y)/3 = 30/3 y = 10 The y intercept is + 10 5x + 3y = 30 Put zero in place of y and solve for x 5x + 3(0) …

2016年2月27日 · x~~2.11 1. Log both sides of the equation. 5^x=30 log(5^x)=log(30) 2. Recall the log rule: log_b(m^color(red)(n))=color(red)(n)log_b(m).

How do you factor by grouping #2x^3+12x^2-5x-30#? Algebra Polynomials and Factoring Factoring by Grouping. 1 Answer

2016年9月1日 · (x+6)(x^2 +5) There are 4 terms and no common factor in all of them. Make common factors by grouping in pairs - make sure there is a + between the groups, x^3 +6x^2 +5x+30 " = " (x^3 +6x^2) +(5x+30) =x^2(x +6) + 5(x +6) larr" " there is a common bracket.