Question

y(y + 4) - y = 6 is a quadratic equation.
true or false?

Answer 1

Start by distributing the first y to the area in the parenthesis

Answer 2

So y(y+4) becomes y^2+4y then you have to move everything to one side
So y^2+4y-y-6

Answer 3

Combine like terms
y^2+3y-6

Answer 4

Does that look like a quadratic equation to you?

Answer 5

yes..

Answer 6

then there's your answer :)