Question

ok who can help with this problem? ill post the link

Answer 1

(x+5)*(x+7)=(x-4)*(x-5)
\[x ^{2} + 7x+5x+35 = x^{2} -5x-4x+20\]
\[x ^{2} +12x - x ^{2} - 9x = 20 - 35\]
\[3x=-15\]
x= -5

Answer 2

ok thanks for your help

Answer 3

wait are you sure its negative 5 the program my school uses lists -5 as wrong I see the math would equal -5 but it lists the answer as wrong