Solve this please.
Only no-5
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Answer:
5a)
=(x+3)²
= x²+ 2.x.3+ 3² hint: (a+b)²= (a²+2ab+b²)
=x²+6x+9
(optional from here)
= x²+ (3+3)x + 9
= x²+ 3x+ 3x + 9
= x( x+3) + 3 ( x+3)
= (x+3) (x+3)
Step-by-step explanation:
same goes for the remaining. Just apply formula.
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