(x-5)(x+3)=(x-7)(x+4)
Answers
Answered by
1
Answer:
which type 9f question is this
Answered by
0
Answer:
Step-by-step explanation:
(x - 5)(x+3) = (x -7)(x +4)
x*(x+3)-5(x+3)=x(x +4) -7(x + 4)
x*x + x*3 +(-5)*x +3*(-5)=x*x + x*4 + x*(-7) + 4*(-7)
x² + 3x - 5x - 15 = x² + 4x - 7x - 28
x² - 2x - 15 = x² - 3x -28
x² - 2x - 15 - x² + 3x + 28 = 0
x² - x² - 2x + 3x - 15 + 28 = 0
0 + x + 13 = 0
x + 13 = 0
x = -13
Similar questions