Q. Rewrite the expression as a product of four linear factors:(x2+6x)2−11(x2+6x)−80Answer:
Simplify Expression: Let's first simplify the given expression:(x2+6x)2−11(x2+6x)−80We can let y=x2+6x to make the expression look like a quadratic in terms of y:y2−11y−80
Substitute and Factor: Now we factor the quadratic expression:y2−11y−80=(y−16)(y+5)
Factor Quadratic Expression: Next, we substitute back x2+6x for y:(x2+6x−16)(x2+6x+5)
Factor First Quadratic: We now factor each quadratic expression to find the linear factors. Starting with x2+6x−16, we look for two numbers that multiply to −16 and add up to 6. These numbers are 8 and −2. x2+6x−16=(x+8)(x−2)
Factor Second Quadratic: Next, we factor x2+6x+5, looking for two numbers that multiply to 5 and add up to 6. These numbers are 5 and 1.x2+6x+5=(x+5)(x+1)
Write as Product: Finally, we write the expression as a product of four linear factors: x + \(8)(x - 2)(x + 5)(x + 1)\