16(a+6b)²-9(a-3b)²
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16(a+6b)²-9(a-3b)²
help me out and I will mark you as brainliest
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Answer:
Step-by-step explanation:
16-9 = 0
16 ( + 12ab + ) - 9 ( - 6ab + ) = 0
[ + 192ab + ] - [ - 54ab + ] = 0
+ 192ab + - + 54ab - = 0
∴ + +246ab = 0
Answer:
Answer: 8a^2+246ab+495b^2
Step-by-step explanation:
6(a+6b)^2-9(a-3b)^2
=16{a^2+12ab+36b^2}-9{a^2-6ab+9b^2}
=16a^2+192ab+576b^2-9a^2+54ab-81b^2
=a^2(16-9)+ab(192+54)+b^2(576-81)
=8a^2+246ab+495b^2