Question

Solve the equation using square roots. 7x2 + 6 = 13

Answer 1

7x² +6=13
7x²=7
x²=1
x=1 or -1

Answer 2

Given the equation is 7x² + 6 = 13.

Solving the quadratic equation using square roots :-

7x² + 6 = 13

Step 1 :- subtracting 6 from both sides

7x² + 6 - 6 = 13 - 6

7x² = 7

Step 2 :- Dividing by 7 on both sides

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Step 3 :- Taking square root on both sides

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So, x = -1 or x = 1 is the final answer.