Question

multiply (3x-y) and (2x-y)and verify the result by X=-3​

Answer 1

Given :

2 terms $(3x-y),(2x-y)$

To find :

The product of the terms.

Step-by-step explanation:

• The product can be found by following these steps

       $(3x-y)(2x-y)$

• The formula used is

       $(ax-y)(bx-y)=abx^{2} -axy-bxy+y^{2}$

• Substitute the values in the given equation

       $(3x-y)(2x-y)=3(2)x^{2} -3xy-2yx+y^{2}$

• Add the like terms.

      $(3x-y)(2x-y)=6x^{2} -5yx+y^{2}$

• Replace the value of x by -3.

       $6(-3)^{2} -5y(-3)+y^{2}$

• Remove the brackets.

       $54+15y+y^{2}$

Final answer :

The product of $(3x-y)(2x-y)$ is $54+15y+y^{2}$ when $x=-3$