Question

PLEASE HELP 3x^2 - 3x - 18

Answer 1

x1,2= 3;-2

Explanation:

3x^2 - 3x - 18=0

Counting discriminant: (-3)^2-4*3*-18=225

X1,2= 3+-√225/2*3= 3+-15/6=3;-2

X1=3, x2=-2

Answer 2

Answer: 3(x-3)(x+2) is the solution

Explanation:

Common factor

Use the sum-product pattern

Common factor from the two pairs

Rewrite in factored form