Question

factories 3x²-3x-18​

Answer 1

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3x^2-3x-18

by quadratic formula

a=3, b=-3, c=-18

now, x= -b+-rootb^2-4ac/2a

x= 3+-root225/2a

x= 3+-15/2×3

therefore , value of x= 3+15/6=3

and , x= -12/6=-2

hence , the two values of x are 3,-2 respectively

Answer 2

Answer :-

• 3x² - 3x - 18

=> 3x² - 9x + 6x - 18

=> 3x(x - 3) + 6(x - 3)

=> (3x + 6) (x - 3)

=> x = -2, 3