Question

The expression a--X bu-: X Q-: X b:-3 X 24 is equal to (a) arba (b) 2 ab (c) 32 (d) 16 tell me​

Answer 1

Answer:

In the given polynomial 3x

2

−x−4,

The first term is 3x

2

and its coefficient is 3.

The middle term is −x and its coefficient is −1.

The last term is a constant term −4.

Multiply the coefficient of the first term by the constant 3×−4=−12.

We now find the factor of −12 whose sum equals the coefficient of the middle term, which is −1 and then factorize the polynomial 3x

2

−x−4 as shown below:

3x

2

−x−4

=3x

2

+3x−4x−4

=3x(x+1)−4(x+1)

=(3x−4)(x+1)

Hence, 3x

2

−x−4=(3x−4)(x+1).

Answer 2

I THINK CORRECT ANSWER IS OPTION (b)

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