Q. Simplify the following expression completely.x2+3x−70x2−16x+63Answer:
Factor Numerator and Denominator: Factor the numerator and the denominator.The numerator x2−16x+63 can be factored into (x−7)(x−9) because 7×9=63 and 7+9=16.The denominator x2+3x−70 can be factored into (x+10)(x−7) because 10×−7=−70 and 10−7=3.
Simplify by Canceling Common Factors: Simplify the expression by canceling out common factors. The common factor in the numerator and the denominator is (x−7). So, we cancel out (x−7) from both the numerator and the denominator. The simplified expression is x+10x−9.
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