If -3 and -5 are the two numbers whose sum is -8 and product is +15, then algebraic expression will be ______?
- x^2 - 8x + 15
- x^2 + 8x + 15
- x^2 - 8x - 15
- None of these
Explanation
Given:
Sum of numbers = -8
Product of numbers = 15
The algebraic expression representing this is:
x^2 - (sum)x + (product) = 0
x^2 - (-8)x + 15 = 0
x^2 + 8x + 15 = 0
The correct answer is: x^2 + 8x + 15
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