Divide.Please helps lol

sorry, my previous answer was wrong

Divide  

4x2+7x−4 / x+1

=4x+3+(−7/x+1)

4x + 3 + (−7/x+1)

(4x+3) - 7/(x+1)

Step-by-step explanation:

(4x²+7x-4) ÷ (x+1)

(4x² + 4x + 3x - 4) ÷ (x + 1)

(4x(x + 1) + 3x - 4) ÷ (x + 1)

(4x(x + 1) + 3x + 3 -7) ÷ (x + 1)

(4x(x + 1) + 3(x + 1) - 7) ÷ (x + 1)

[(x + 1)(4x+3) - 7] ÷ (x + 1)

[(x + 1)(4x+3) ÷ (x - 1)] - [7 ÷ (x + 1)]

(4x+3) - 7/(x+1)

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15