Question

Solve x2+7x = 7 and give your answer correct to two decimal places.

Answer 1

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)

Answer 2

Answer:

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