Question

Помогите решить.
9х в квадрате+48х+64

Answer 1

$9x^2+48x+64=(3x)^2+2\cdot (3x)\cdot 8+8^2=(3x+8)^2$

Answer 2

$9x {}^{2} + 48x + 64 = {3}^{2} {x}^{2} + 2 \times 3x \times 8 + {8}^{2} = (3 \times x) {}^{2} + 2 \times 3x \times 8 + {8}^{2} = (3x + 8) {}^{2}$