Question

4. If x = 2, y = -3, then find the value of - 5x2 + 3y2 + xy.
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Answer 1

Answer:

Given .

the value of x is 2 and y is -3

so,

-5x² + 3y² + xy

= - 5 ( 2)² + 3 ( -3)² + 2 ×( -3)

= -5 × 4 + 3 × 9 - 6

= -20 + 27 - 6

= -20 + 21

= 1

Answer 2

Answer:

1

Step-by-step explanation:

-5x²+3y²+xy

-5(2)²+3(-3)²+(2)(-3)

-5(4)+3(9)+(-6)

-20+27-6

-26+27

1