Question

Ayuda Tema: Factorización
(Doy corona)

Answer 1

$\bf{4x - 2 = 2} \\ \\ \bf{4x = 2 + 2} \\ \\ \bf{4x = 4} \\ \\ \boxed{\bf\red{x = 1}}$

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$\bf{3x + 18 = x - 2} \\ \\ \bf{3x - x = - 2 - 18} \\ \\ \bf{2x = - 20} \\ \\ \bf{x = \frac{ - 20}{2} \boxed{\bf\red{= - 10 }}}$

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$\bf{ - 7 + 15x = 2x + 6} \\ \\ \bf{ 15 x - 2x = 6 + 7} \\ \\ \bf{13x = 13} \\ \\ \boxed{\bf\red{x = 1}}$

Answer 2

Respuesta:

a²+2a = a(a+2)

3x³y+6x²y²-9xy³ = 3xy(x²+2xy-3y²)

a²-b² = (a+b)(a-b)

9x²-81 = (3x-9)(3x+9)

x²+10x+25 = (x+5)(x+5) ó (x+5)²

m²-2mn+n² = (m-n)²

x²+7x+10 = (x+2)(x+5)

x²-18x-40 = (x-20)(x+2)

x²-3x+2 = (x-1)(x-2)

12x²-7x-12 = (3x-4)(4x+3)

12x²-7x-12

= 12x²-16x+9x-12

= 4x(3x-4)+3(3x-4)

= (3x-4)(4x+3)

Explicación paso a paso: