Simplify : - (x^2-7) ( x^2+7)
Answers
Answered by
1
Answer:
x⁴- 49
Step-by-step explanation:
(x²-7)(x²+7)
= (x²)²-7²
= x⁴- 49
Answered by
1
Answer:
(x²-7) ( x²+7)
using a²-b² = (a+b)(a-b
= (x²)² - (7)²
= x⁴ - 49
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