Question

Use the quadratic formula to find the roots: -3x^2 + 27x = 42​

Answer 1

x=2, x=7

Explanation:

-3x^2+27x=42

x^2-9x=-14

x^2-9x+14=0

x*(x-2)-7(x-2)=0

(x-2)*(x-7)=0

x-2=0

x-7=0

x=2

x=7