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:

(10x^(2)+3x)^(2)-19(10x^(2)+3x)+18
Answer:

Rewrite the expression as a product of four linear factors:\newline(10x2+3x)219(10x2+3x)+18 \left(10 x^{2}+3 x\right)^{2}-19\left(10 x^{2}+3 x\right)+18 \newlineAnswer:

Full solution

Q. Rewrite the expression as a product of four linear factors:\newline(10x2+3x)219(10x2+3x)+18 \left(10 x^{2}+3 x\right)^{2}-19\left(10 x^{2}+3 x\right)+18 \newlineAnswer:
  1. Identify expression as quadratic: Identify the given expression and recognize that it resembles a quadratic in form, where the variable part is 10x2+3x10x^2 + 3x instead of a simple xx. The expression is a quadratic in terms of 10x2+3x10x^2 + 3x.
  2. Rewrite as quadratic equation: Rewrite the expression as a quadratic equation: Let u=10x2+3xu = 10x^2 + 3x. Then the expression becomes u219u+18u^2 - 19u + 18.
  3. Factor the quadratic: Factor the quadratic equation: We need to find two numbers that multiply to 1818 and add up to 19-19. These numbers are 1-1 and 18-18. So we can write the quadratic as (u1)(u18)(u - 1)(u - 18).
  4. Substitute back for u: Substitute back for u: Replace uu with (10x2+3x)(10x^2 + 3x) in the factored form to get ((10x2+3x)1)((10x2+3x)18)((10x^2 + 3x) - 1)((10x^2 + 3x) - 18).
  5. Expand linear factors: Expand each linear factor: We need to simplify ((10x2+3x)1)((10x^2 + 3x) - 1) and ((10x2+3x)18)((10x^2 + 3x) - 18) to get the linear factors. For the first factor, (10x2+3x1)(10x^2 + 3x - 1), we can't simplify it further, so it remains as is. For the second factor, (10x2+3x18)(10x^2 + 3x - 18), we also can't simplify it further, so it remains as is.
  6. Recognize factors are quadratic: Recognize that the factors (10x2+3x1)(10x^2 + 3x - 1) and (10x2+3x18)(10x^2 + 3x - 18) are not linear, but quadratic. We need to factor each of these further to get linear factors.
  7. Factor first quadratic: Factor the first quadratic: We need to factor 10x2+3x110x^2 + 3x - 1. This does not factor nicely, and we would typically use the quadratic formula to find its roots. However, since we are looking for linear factors and this is a homework problem, it's likely that there is a simpler solution. We should check for a mistake in the previous steps before proceeding.

More problems from Operations with rational exponents