2016年11月22日 · y = − 5x +30 x = 10 Since we know the value of x from the second equation, replace x in the first equation with 10. y = − 5(10) +30 y = − 50 +30 y = − 20

2018年4月15日 · How do you factor x3 + 6x2 − 5x − 30?

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17日 · How do you use the grouping method to factor 2x3 + 12x2 + 5x + 30 completely?

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 ...

2016年2月27日 · 1. Log both sides of the equation. 5x = 30 log(5x) = log(30) 2. Recall the log rule: logb(mn) = nlogb(m). Thus, on the left side of your equation, bring down the exponent, x. xlog(5) = log(30) 3. Solve for x using a calculator. x = log(30) log(5) x ≈ 2.11

How do you factor by grouping 2x3 + 12x2 − 5x − 30?

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.

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3月23日 · Since both of the equations tell you what y is, we know that the solution to the system of equations must satisfy both equations. So the y value from the first equation must be equal to the y value for the second equation. -5x+30=6-2x And. 24=3x So X = 8 Now that you have the X value you can substitute into either the first or the second equation to get the y …