If two numbers are − 3 and − 5 , with sum − 8 and product + 15, then which is the correct algebraic expression?
- x ^2 −8x+15
- x ^2 +8x+15
- x ^2 +3x−5
- 𝑥^2 − 3 𝑥 − 5
Explanation
Sum of two numbers:
-
Product:
Let’s now write an algebraic expression where the sum is and the product is .
This is a quadratic expression of the form:
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