Question

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Answer 1

(4x+1)² = 16x² + 8x + 1(4x-4)(2x+3) = 8x² + 12x-8x-12(x+3)² = x² + 6x + 9

Acum, adunate:
16x² + 8x + 1 + 8x² + 12x-8x-12 + x² + 6x + 9
= 25x² + 18x - 2

Answer 2

(4x+1)²+(4x-4)(2x+3)+(x+3)²=
16x²+8x+1+x²+8x+12x-8x-12+x²+6x+9=
16x²+8x+x²+8x+12x-8x+6x+1-12+9=
25x²+18x-2
nu cred ca mai poti face nmk,doar sa dai in factor pe x
SPER CA TE-AM AJUTAT!