What number would you add to both sides of x2 + 7x = 4 to complete the square?
2 answers:
<u>Answer</u>
12.25
<u>Explanation</u>
x² + 7x = 4
The number that should be added on both sides is the square of half the coefficient of x.
That is (7/2)².
(7/2)² = 7²/2²
= 49/4
= 12.25
∴<em> x² + 7x + 3.5² = 4 + 12.25</em>
<em> (x + 3.5) ² = 16.25</em>
Answer:(7/2)2
Step-by-step explanation:the answer is (7/2) to the second power.
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Hope it helps
Step-by-step explanation:
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