Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

How do you solve $4x^2-49=0$ by taking square roots?

1 Answer

Apr 16, 2018

$x= +-7/2$

Explanation:

$4x^2-49=0$

Add $49$ to both sides
$4x^2=49$
Divide both sides by $4$
$x^2= 49/4$
Square root both sides
$x= +-sqrt(49/4)$
$x= +-7/2$

Related questions

See all questions in Use Square Roots to Solve Quadratic Equations

Impact of this question

16941 views around the world

You can reuse this answer
Creative Commons License