Mathematics: Solve the quadratic by factoring 2x²-2x-12=0

Solve the quadratic by factoring 2x²-2x-12=0

Ответ:

gracekerleyy

02.01.2022

Mathematics

$2x^2-2x-12=0\\
2(x^2-x-6)=0\\
2(x^2-3x+2x-6)=0\\
2(x(x-3)+2(x-3))=0\\
2(x+2)(x-3)=0\\
x=-2 \vee x=3$

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Ответ:

erin2077

02.01.2022

Mathematics

$2x^2-2x-12=0\\\\2x^2+4x-6x-12=0\\\\2x(x+2)-6(x+2)=0\\\\(x+2)(2x-6)=0\iff x+2=0\ \vee\ 2x-6=0\\\\x=-2\ \vee\ x=3$

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Ответ:

evy22

16.04.2020

Mathematics

C) 3x^2 + 20x + 12 = 0

Step-by-step explanation: Because it is the right answer

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