Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Rewrite the expression as a product of four linear factors:

(x^(2)+4x)^(2)-9(x^(2)+4x)-36
Answer:

Rewrite the expression as a product of four linear factors:\newline(x2+4x)29(x2+4x)36 \left(x^{2}+4 x\right)^{2}-9\left(x^{2}+4 x\right)-36 \newlineAnswer:

Full solution

Q. Rewrite the expression as a product of four linear factors:\newline(x2+4x)29(x2+4x)36 \left(x^{2}+4 x\right)^{2}-9\left(x^{2}+4 x\right)-36 \newlineAnswer:
  1. Identify Expression: Let's first identify the expression we need to factor: (x2+4x)29(x2+4x)36(x^2 + 4x)^2 - 9(x^2 + 4x) - 36.\newlineThis expression resembles a quadratic in form, where (x2+4x)(x^2 + 4x) is our "variable". Let's substitute y=x2+4xy = x^2 + 4x to make it look more like a standard quadratic equation.
  2. Substitute yy: Substitute yy into the expression to get: y29y36y^2 - 9y - 36. Now we have a quadratic equation in terms of yy, which we can factor.
  3. Factor Quadratic Equation: Factor the quadratic equation y29y36y^2 - 9y - 36. We are looking for two numbers that multiply to 36-36 and add up to 9-9. These numbers are 12-12 and +3+3. So, the factored form is (y12)(y+3)(y - 12)(y + 3).
  4. Substitute x2+4xx^2 + 4x: Now we need to substitute x2+4xx^2 + 4x back in for yy to get: (x2+4x12)(x2+4x+3)(x^2 + 4x - 12)(x^2 + 4x + 3).
  5. Factor x2+4x12x^2 + 4x - 12: Next, we need to factor each of these quadratic expressions further. Starting with x2+4x12x^2 + 4x - 12, we look for two numbers that multiply to 12-12 and add up to 44. These numbers are 66 and 2-2. So, the factored form is (x+6)(x2)(x + 6)(x - 2).
  6. Factor x2+4x+3x^2 + 4x + 3: Now, factor x2+4x+3x^2 + 4x + 3. We look for two numbers that multiply to 33 and add up to 44. These numbers are 33 and 11. So, the factored form is (x+3)(x+1)(x + 3)(x + 1).
  7. Combine Linear Factors: Finally, we combine all the linear factors to express the original expression as a product of four linear factors: (x+6)(x2)(x+3)(x+1)(x + 6)(x - 2)(x + 3)(x + 1).

More problems from Find the roots of factored polynomials