Question

# Solve the following quadratic equations using formula. x2 + 3x – 10 = 0

Solution

## Given: x2 + 3x – 10 = 0 On comparing this equation with ax2 + bx + c = 0, we get: a = 1, b = 3, c = –10 For the quadratic equation ax2 + bx + c = 0, we know that the quadratic formula is $x=\frac{-b±\sqrt{{b}^{2}-4ac}}{2a}$ On substituting a = 1, b = 3, c = –10, we get:   Thus, the solution of the given quadratic equation is x = –5, 2.MathematicsMathematics (Algebra)Standard X

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