Question

Productos Notables
(2x+5)^2
(3x-2)^2
(x+3)(x-1)
(x-2)(x+m)
(x-4)(x+4) - x^2
(x-3)(x+4) - (x+1)(x-6)

Answer 1

Respuesta:

$\left(2x+5\right)^2$

$=\left(2x\right)^2+2\cdot \:2x\cdot \:5+5^2$

$=4x^2+20x+25$

$\left(3x-2\right)^2$

$=\left(3x\right)^2-2\cdot \:3x\cdot \:2+2^2$

$=9x^2-12x+4$

$\left(x+3\right)\left(x-1\right)$

$=xx+x\left(-1\right)+3x+3\left(-1\right)$

$=x^2+2x-3$

$\left(x-2\right)\left(x+m\right)$

$=xx+xm-2x-2m$

$=x^2+mx-2x-2m$

$\left(x-4\right)\left(x+4\right)-x^2$

$=x^2-16-x^2$

$=-16$

$\left(x-3\right)\left(x+4\right)-\left(x+1\right)\left(x-6\right)$

$=x^2+x-12-\left(x+1\right)\left(x-6\right)$

$=x^2+x-12-x^2+5x+6$

$=6x-6$

Explicación paso a paso:

Answer 2

Respuesta:

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Explicación paso a paso: