Question

01. The value of x²+7 when x=-4 is​

Answer 1

Answer:

(-4) square+7

=16+7

=23

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Answer 2

Answer:

Given equation is x2+7x=7

⇒x2+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)

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