It would be 1/2 the pie
The variables a and b are positive numbers.
1 answer:
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Answer:
see explanation
Step-by-step explanation:
Given
9 - 225
← factor out 9 from each term
= 9( - 25
) ← difference of squares
Difference of squares factors in general as
a² - b² = (a - b)(a + b)
= (x² )² ⇒ a = x²
25 = (5
)² ⇒ b = 5
Hence
- 25
= ( -5
)(
+ 5
)
Thus
9 - 225
= 9 ( - 5
)(
+ 5
)