Question
upstudy study bank question image url

Fråga 5 av 10 Vad blir resultatet av \( (5 x+3 y)(5 x-3 y) \) ? \( \begin{array}{ll}10 x^{2}-6 y^{2} \\ & 25 x^{2}+9 y^{2} \\ & 25 x^{2}-9 y^{2} \\ 10 x^{2}+6 y^{2}\end{array} \)

Ask by Lindsey Turnbull. in Sweden
Jan 23,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

Det resulterande uttrycket är \( 25x^{2}-9y^{2} \).

Solution

Calculate or simplify the expression \( (5x+3y)(5x-3y) \). Simplify the expression by following steps: - step0: Solution: \(\left(5x+3y\right)\left(5x-3y\right)\) - step1: Simplify the product: \(\left(5x\right)^{2}-\left(3y\right)^{2}\) - step2: Evaluate the power: \(25x^{2}-9y^{2}\) Det resulterande uttrycket av \( (5x+3y)(5x-3y) \) är \( 25x^{2}-9y^{2} \). Därför är det rätta svaret \( 25x^{2}-9y^{2} \).

Reviewed and approved by the UpStudy tutoring team

error msg
Explain
Simplify this solution

Beyond the Answer

För att lösa \( (5x + 3y)(5x - 3y) \) kan vi använda formeln för produkten av två konjugater, som säger att \( (a+b)(a-b) = a^2 - b^2 \). Här är \( a = 5x \) och \( b = 3y \). Så vi får: \[ (5x)^2 - (3y)^2 = 25x^2 - 9y^2 \] Därmed blir svaret \( 25x^2 - 9y^2 \). Det korrekta svaret är alltså: \( 25 x^{2}-9 y^{2} \)

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy