Simplify: (√7 + √2)(√7 − √2)
Answers
Answered by
1
(√7)² - (√2)²
= 7 - 2
= 5
pls mark me as the brainliest
Answered by
0
Answer:
3²
Step-by-step explanation:
1)
√7 = a
√2 = b
apply: (a+b)(a-b) = a²+b²
(√7²)+(√2)² = 7+2 = 9 = 3²
2)
√7 =2.645751
√2 = 1.414214
apply: (a+b)(a-b) = a²+b²
(2.645751²)+(1.414214)² =9 = 3²
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