Question

Please solve this......​

Answer 1

Answer:

(a) -7

(b) 26

Step-by-step explanation:

We are given the following expressions and also x = -2 and y = 1.

(a)   $xy-x^{2} -y^{3}$  

   Now, putting values of x and y in the above equation;

     (-2)*(1) - $(-2)^{2} - 1^{3}$ = -2 - 4 - 1 = -7

(b) $2x^{2} y^{2} -3xy -6xy^{2}$

    = $2(-2)^{2}(1)^{2} -(3*(-2)*1) -(6*(-2)*1^{2})$

     = 2 * 4 + 6 + 12 = 8 + 6 + 12 = 26.

Answer 2

Answer:

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