Chapter 10: Q 99 (page 1195)

Solve the equation using quadratic formula.
$4 m^{2} + m - 3 = 0$

Short Answer

Expert verified

The solutions are $m = \frac{3}{4}, m = 1$ .

Step by step solution

Given Information.

The given equation is $4 m^{2} + m - 3 = 0$ .

Write the quadratic equation in standard form and identify a,b,c.

The quadratic equation is in standard form.

So,

$a = 4, b = 1, c = - 3$

Substitute the values in quadratic formula.

$x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}$

$m = \frac{- (1) \pm \sqrt{(1)^{2} - 4 (4) (- 3)}}{2 (4)} m = \frac{- 1 \pm \sqrt{1 + 48}}{8} m = \frac{- 1 \pm \sqrt{49}}{8} m = \frac{- 1 \pm 7}{8}$

Rewrite to show two solutions.

$m_{1} = \frac{- 1 + 7}{8} m_{1} = \frac{3}{4} m_{2} = \frac{- 1 - 7}{8} m_{2} = \frac{- 8}{8} = 1$

Thus, the solutions are $m = \frac{3}{4}, m = 1$ .

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Solve the equation using quadratic formula.
$4 m^{2} + m - 3 = 0$

Short Answer

Step by step solution

Given Information.

Write the quadratic equation in standard form and identify a,b,c.

Substitute the values in quadratic formula.

Rewrite to show two solutions.

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Solve the equation using quadratic formula.4m2+m-3=0

Short Answer

Step by step solution

Given Information.

Write the quadratic equation in standard form and identify a,b,c.

Substitute the values in quadratic formula.

Rewrite to show two solutions.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Calculus

Probability and Statistics

Statistics

Mechanics Maths

Logic and Functions

Theoretical and Mathematical Physics

Study anywhere. Anytime. Across all devices.

Solve the equation using quadratic formula.
$4 m^{2} + m - 3 = 0$