3x² − 2xy − 5y² at x = 2 and y = 5
Answers
Answered by
0
Answer:
(3×2×2)- (2×2×5)- (5×5×5)
Step-by-step explanation:
12-20-125
32-125
=92
Answered by
0
Answer:
3x² − 2xy − 5y² at x = 2 and y = 5
Step-by-step explanation:
we have x= 2 and y= 5
= 3(2)^2 - 2*2*5 - 5(5)^2
= 3* 4 - 20 - 5* 25
= 12 - 20 - 125
= -133
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