Question

simplify the expression 5y(2y-8)
step 0: 5y-(2y-8)
step 1: 5y-2y-8
step 2: 3y-8
what did they do wrong in the probelm
what's the correct way?

Answer 1

(2y-8) is being multiplied to 5y, not subtracted from. 5y(2y-8) would become 10y^2-40y, since you distribute the 5y to both terms.

Answer 2

That's not simplified though... I don't really get it. 5y(2y-8) is simplified, 10y^2-40y isn't...

Answer 3

Perhaps you have to subtract them.

Answer 4

You can't subtract 40y from 10y^2 because 10y^2 is to the 2nd power. That would only work if 40y was squared also.

Answer 5

That's true but it doesn't make sense, @Jonathan_Garcia89 was there anything else to the problem?

Answer 6

no its shows the example and it wrong but it wants me to find whats wrong about the probelm and whats the correct way for me to fix it.

Answer 7

its*