3 years ago

Which of the following are solutions to x^2+3x-10=0

Mathematics

1 answer:

zhuklara [117]3 years ago

7 0

$x^2+3x-10=0\\\\x^2+5x-2x-10=0\\\\x(x+5)-2(x+5)=0\\\\(x+5)(x-2)=0\iff x+5=0\ \vee\ x-2=0\\\\x=-5\ \vee\ x=2$

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