Question

4a^2x^2+4abx+b^2=................

Answer 1

Ответ:

=2^2×а^2×х^2+2×2ах×b+b^2=(2ax)^2+2×2ax×b+b^2=(2ax+b)&2

Answer 2

Ответ: (2ха+b)²..........