the expression below is the factorization of what trinonmial (5x+4)(2x-5) a. 10x^2-2x-20 b. 10x^2-2x+20 c. 10x^2-17x+20 d. 10x^2-17x-20

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

what level of math? also i don't need to be paid if i can you.

you can use a^2+ b^2=c^2

b.   e = 7.5h

hope this , lovely!