Q. Rewrite the expression as a product of four linear factors:(8x2+11x)2−16(8x2+11x)−57Answer:
Identify and Recognize Quadratic Form: Identify the given expression and recognize that it resembles a quadratic in form, where the variable part is (8x2+11x). The expression is: (8x2+11x)2−16(8x2+11x)−57 Let's denote u=8x2+11x, so the expression becomes: u2−16u−57
Factor Quadratic Expression: Factor the quadratic expression u2−16u−57. We are looking for two numbers that multiply to −57 and add up to −16. The numbers that satisfy these conditions are −19 and +3. So we can factor the quadratic as: (u−19)(u+3)
Substitute and Expand: Now, substitute back 8x2+11x for u in each factor.(8x2+11x−19)(8x2+11x+3)
Further Factorization Error: Each quadratic factor can be further factored into two linear factors. We will start with the first quadratic factor:8x2+11x−19To factor this, we need to find two numbers that multiply to 8∗(−19)=−152 and add up to 11.The numbers that satisfy these conditions are 19 and −8.However, we cannot directly factor this quadratic into linear factors because the numbers 19 and −8 do not multiply to −152. This indicates a math error in the factorization process.
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