Use standard formula to expand :
(3-7a)(3+4a)
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Hey mate, here is your answer....
(3-7a)(3+4a) = 0
3*(3+4a) -7a(3+4a) =0
9 + 12a -21a - 28a^2 =0
9 - 9a -28a^2 =0
28a^2 + 9a -9 =0
So, this is your answer
Hope it will help you....
Keep Asking...
If really helps you, please mark as Brainliest.....
(3-7a)(3+4a) = 0
3*(3+4a) -7a(3+4a) =0
9 + 12a -21a - 28a^2 =0
9 - 9a -28a^2 =0
28a^2 + 9a -9 =0
So, this is your answer
Hope it will help you....
Keep Asking...
If really helps you, please mark as Brainliest.....
pokemonwale21p52kbn:
Thank You Mate !! Its' Correct !
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