show that x is equal to minus 2 is a solution of 3 X square + 13 x + 14 is equal to zero
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Answered by
81
3x^2 + 13x + 14 = 0
3x^2 + 6x + 7x + 14 = 0
3x (x + 2) + 7 (x + 2) = 0
(3x + 7) (x + 2) = 0
x + 2 = 0
x = -2
3x^2 + 6x + 7x + 14 = 0
3x (x + 2) + 7 (x + 2) = 0
(3x + 7) (x + 2) = 0
x + 2 = 0
x = -2
Answered by
3
Answer:
3x^2+13x+14=0
3x^2+6x+7x+14=0
3x(x+2)+7(x+2)=0
(3x+7) (x+2)=0
x+2=0
x= -2
hope this helps u
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