Question

Multiply out (x - 4)(3x - y + 3) =_____

Answer 1

Step-by-step explanation:

apply distribtive property

=x(3x - y + 3)-4(3x - y + 3) =3x²-xy+3x-12x+4y-12=3x²-9x+4y-xy-12

Answer 2

Given,

The expression: (x - 4)(3x - y + 3).

To find,

The value of the given expression.

Solution,

We can easily solve this problem by following the given steps.

According to the question,

We have the following expression:

(x - 4)(3x - y + 3)

(We know that every term is multiplied with every term in the bracket.)

x(3x-y+3) -4(3x-y+3)

(Note that the product of two negative integers is always positive.)

3x²-xy+3x-12x+4y-12

Rearranging the terms:

3x²+4y+(3x-12x)-xy-12

3x²+4y-9x-xy-12

Hence, the value of (x - 4)(3x - y + 3) is 3x²+4y-9x-xy-12.