y.
. (2a² + 5b)2 + (2a² - 5b)2
Answers
Answered by
5
Answer:
(2a² + 5b)2 + (2a² - 5b)2= 8a^4+50b^2
Step-by-step explanation:
(2a² + 5b)^2 + (2a² - 5b)^2
= 2{ (2a²)^2+(5b)^2}
= 2(4a^4+25b^2)
= 8a^4+50b^2
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Answered by
1
Answer: 8a“+50b4
Step-by-step explanation:
x +y =(x+y)2-2xy
x=2a+5b?, y=2a2-5b2
(2a +5b2)+(2a2-5b2)=
=(2a*+5b²+2a°-5b*)²-2(2a²+5b² ) (2a²-5b*)=
=(4a)?-2(2a?+5b )(2a²-5b?)
(x+y)(x-y)=x2-y2
(4a) 2(2a)²-(5b³9=16a*-2(4a*-25b*)=16 at-8a*+50b*=
=8a*+50b4
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