If x = − 9 and y = 2, evaluate the following expressions:
(4y)² −(2x)² =
4y²−2x²=
Answers
Answered by
4
Answer:
If x = − 9 and y = 2
(4y)² −(2x)² = (4x2)² −(2x(-)9)²
=> (8x8)- (-18)²
=> 64-324
=> (-) 260
(ii) 4y²−2x²= 4x2²−2(-9)²
=> 16-2x81
=> 16-162
=>(-) 146
Hope it helps
Step-by-step explanation:
Answered by
2
Answer:
(4y)^2 -(2x)^2 = 260
4y^2 -2x^2 = -146
Step-by-step explanation:
=(4y)^2 - (2x)^2
=(4×2)^2 - (2× -9)^2
=(8)^2 - (-18)^2
=64 - 324
=260 Ans
=4y^2 -2x^2
=4×(2)^2 - 2× (-9)^2
=4×4 - 2×81
=16 - 162
=146 Ans
I Hope It Helps You
Thank You !
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