factorise a²- 4
plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz
Answers
Answered by
0
Answer:
a²-4
a²-2²
From formula
a²-b²=(a+b)(a-b)
So,
(a+2)(a-2) Ans
Step-by-step explanation:
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Answered by
0
Answer:
a2−b2=(a+b)(a−b) where a=a and b=2
.
(a+2)(a−2)
Step-by-step explanation:
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