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Find the roots of the following quadratic equations. By factorisation x²-3x-10=0

Posted by Ritika Bansal 5 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Lifes Crush 5 years, 3 months ago

Gaurav, you always help everyone. I want to know your class. Can you please....

1Thank You

Gaurav Seth 5 years, 3 months ago

x² – 3x – 10
= x² - 5x + 2x - 10
= x(x - 5) + 2(x - 5)
= (x - 5)(x + 2)
Roots of this equation are the values for which (x - 5)(x + 2) = 0

∴ x - 5 = 0 or x + 2 = 0

⇒ x = 5 or x = -2

2Thank You

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CBSE > Class 10 > Mathematics