Question

Solve using factoring n2 - 7n = 0

Answer 1

The answer is n=0,7 !!

Answer 2

Explanation:

n^2-7n is n(n-7). So n(n-7) = 0. We know n can be zero because 0* anything is 0. It could also be 7 because we are looking to multiply by 0. So to get a zero in the parentheses. you would do 0+7. Which is obviously, 7