Step-by-step explanation:
here be use formula,
(a+b)(a-b) = a²-b²
a= 4, b= √7
a²-b²= 4²-(√7)² = 16-7 = 9
Answer:
Answer is in the attachment
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Answers & Comments
Step-by-step explanation:
here be use formula,
(a+b)(a-b) = a²-b²
a= 4, b= √7
a²-b²= 4²-(√7)² = 16-7 = 9
Verified answer
Answer:
Answer is in the attachment