Question

If a²+4a+x = (a+2)², find the value of x
O 1
O 2
O 3
O 4​

Answer 1

2 is the correct answer

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Answer 2

ANSWER :- 4.

SOLUTION :-

$a {}^{2} + 4a + x \: \: = \: (a + 2) {}^{2}$

$a {}^{2} + 4a + x \: = a {}^{2} + 4 + 4a$

$a {}^{2} - a {}^{2} + 4a - 4a + x = 4$

0 +0 +x=4.

HENCE, X =4.

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