Question
upstudy study bank question image url

Pagnoxssme ua surowsumersu: 1) \( a^{2}-9 \) \( b^{2}+10 b+25 \) \( 25 x^{2}-16 \) \( 9 x^{2}-12 x y+4 y^{2} \) \( 5 a^{2}-20 a b \) 6) \( 7 x^{3}-14 x^{5} \) 7) \( 3 a-3 b+a x-b x \) 8) \( 17 x^{2}-17 \) 9) \( 8 a^{2} b^{2}-72 a^{2} c^{2} \)

Ask by O'Quinn Marsh. in Russia
Jan 24,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

1) \( a^{2} - 9 = (a - 3)(a + 3) \) 2) \( b^{2} + 10b + 25 = (b + 5)^{2} \) 3) \( 25x^{2} - 16 = (5x - 4)(5x + 4) \) 4) \( 9x^{2} - 12xy + 4y^{2} = (3x - 2y)^{2} \) 5) \( 5a^{2} - 20ab = 5a(a - 4b) \) 6) \( 7x^{3} - 14x^{5} = 7x^{3}(1 - 2x^{2}) \) 7) \( 3a - 3b + ax - bx = (a - b)(3 + x) \) 8) \( 17x^{2} - 17 = 17(x - 1)(x + 1) \) 9) \( 8a^{2}b^{2} - 72a^{2}c^{2} = 8a^{2}(b - 3c)(b + 3c) \)

Solution

Конечно, вот разложения на множители для заданных выражений: 1) \( a^{2} - 9 \) \[ a^{2} - 9 = (a - 3)(a + 3) \] 2) \( b^{2} + 10b + 25 \) \[ b^{2} + 10b + 25 = (b + 5)^{2} \] 3) \( 25x^{2} - 16 \) \[ 25x^{2} - 16 = (5x - 4)(5x + 4) \] 4) \( 9x^{2} - 12xy + 4y^{2} \) \[ 9x^{2} - 12xy + 4y^{2} = (3x - 2y)^{2} \] 5) \( 5a^{2} - 20ab \) \[ 5a^{2} - 20ab = 5a(a - 4b) \] 6) \( 7x^{3} - 14x^{5} \) \[ 7x^{3} - 14x^{5} = 7x^{3}(1 - 2x^{2}) \] \[ \text{(можно дополнительно разложить как } 7x^{3}(1 - \sqrt{2}x)(1 + \sqrt{2}x) \text{)} \] 7) \( 3a - 3b + ax - bx \) \[ 3a - 3b + ax - bx = (a - b)(3 + x) \] 8) \( 17x^{2} - 17 \) \[ 17x^{2} - 17 = 17(x^{2} - 1) = 17(x - 1)(x + 1) \] 9) \( 8a^{2}b^{2} - 72a^{2}c^{2} \) \[ 8a^{2}b^{2} - 72a^{2}c^{2} = 8a^{2}(b^{2} - 9c^{2}) = 8a^{2}(b - 3c)(b + 3c) \]

Reviewed and approved by the UpStudy tutoring team

error msg
Explain
Simplify this solution

Bonus Knowledge

Let's enhance your understanding of these expressions by breaking down a couple of interesting points! First up, the first expression \( a^{2}-9 \) is a classic difference of squares! It can be factored into \( (a-3)(a+3) \). This kind of factorization not only simplifies solving equations but is also fundamental in calculus and higher mathematics when considering polynomial behavior and limits. Now, consider \( 25 x^{2}-16 \). This expression also represents a difference of squares, factored as \( (5x-4)(5x+4) \). The application of this concept is huge in algebra, especially when you're simplifying quadratic equations or looking to solve polynomial roots! Plus, mastering these can turn you into a factoring wizard in no time!

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