Question

solve by factoring 8x^2- 10x-25=0
a: x=-0.8 or x=-0.8 c: x=1.25 or x=1.25
b: x=-2.5 or x=-2.5 d: x=-1.25 or x=2.5

Answer 1

\[8x ^{2}-20x+10x-25=0\]
\[4x(2x-5)+5(2x-5)=0\]
\[(4x+5)(2x-5)=0\]
\[4x+5=0\]
\[2x-5=0\]
x==-5/4 or 5/2
x=-1.25 or 2.5

Answer 2

Thank you!

Answer 3

you're welcome