Simplify (4 + 9 b)2 + (4 - 9b)2 - 2(4a + 9b)(4a - 9b)
Answers
Answered by
0
take 4+9b as X and then solve.
Answered by
0
= 8 + 18b + 8 - 18b - 32a^2 -72ab + 72ab - 162b^2
= (8 + 8) + (18b - 18b) + (-72ab + 72ab) - 32a^2 -162b^2
=16 - 32a^2 -162b^2
Similar questions