Question

Resuelve las siguientes multiplicaciones:
(3x+2y)²,
(4x+5y)(4x-5y),
(6x+8)(6x+9).​

Answer 1

Explicación paso a paso:

$(3x + 2y) {}^{2}$

$(3x) {}^{2} + 2 \times 3x \times 2y + (2y) {}^{2}$

$9x {}^{2} + 12xy + 4y {}^{2}$

$(4x + 5y)(4x - 5y)$

$(4x) {}^{2} - (5y) {}^{2}$

$16x {}^{2} - 25y {}^{2}$

$(6x + 8)(6y + 9)$

$6x \times 6y + 6x \times 9 + 8 \times 6y + 8 \times 9$

$36xy + 54x + 48y + 72$