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2x2+3X+1=0

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2x2+3X+1=0

Posted by Ashish Meena 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 3 months ago

Given 2x²+3x+1=0
On comparing this equation with ax²+ bx + c = 0, where a = 2, b = 3, c = 1
∴ b²− 4ac = (5)²− 4 × 2 × 1
= 9 − 8
= 1
x = −b±b2−4ac / 2a
= −3±1 / 2×2
x = −3+1 / 4 or x = −3−1 / 4
x = −2 / 4 or x = −4 / 4
x = −1/2 or x = −1

1Thank You

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CBSE > Class 10 > Mathematics