Question

Solve

2 + 7 = 7 and give your answer correct to two decimal places.​

Answer 1

Step-by-step explanation:

Given equation is x

2

+7x=7

⇒x

2

+7x−7=0

Using the quadratic formula, we get:

x=

2×1

−7±

49+28

⇒x=

2

−7±

77

=0.89,−7.89

Thus, there are two values of x i.e 0.89 and −7.89 (correct up to two decimal places)