Subtract 3x2 – 5y – 2 from 5y – 3x2 + xy and find the value of t – InterviewSolution

1.

Subtract 3x2 – 5y – 2 from 5y – 3x2 + xy and find the value of the result ifx = 2, y = -1.

Answer»

Answer:

Step-by-step explanation:

5y -3X2 +xy -(3x2 - 5y -2)= 5y -3x2 +xy -3x2 + 5y +2

= 10y -6y2 +xy +2

= 10×(-1) -6(-1)2 +2×(-1) +2

= -10 +12 -2 +2

= -12 + 14

= 2

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