Question

quadratic equations : y(y+1) = 20?

Answer 1

y^2 + y = 20

y^2 + y - 20 = 0

Answer 2

?

Answer 3

factor y^2 + y - 20 = 0

Answer 4

No idea

Answer 5

-20 = 5 * -4

5 - 4 = 1

Answer 6

you mean
y^2 + y - 20 =(y+5)(y-4)

Answer 7

and let's stop here, if the questioner can't move past this we shouldn't give the answer

Answer 8

yea

Answer 9

-5 4

Answer 10

yes! but try to write this as
x={-5,4}
that is the proper notation

Answer 11

try to follow what moneybird did, you will be getting weened off our help slowly and will be expected to answer more on your own in the future