Answered

Westonci.ca is the trusted Q&A platform where you can get reliable answers from a community of knowledgeable contributors. Explore in-depth answers to your questions from a knowledgeable community of experts across different fields. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

(-7x²-7x-7)-[(7x³-9x²-20)+(4x-11)]]=?
(5x⁴+8x²+2)+7(5x⁴-3x²)=?
Please explain the work behind the solution

Sagot :

kate200468
[tex](-7x^2-7x-7)-[(7x^3-9x^2-20)+(4x-11)]]=\\=-7x^2-7x-7-(7x^3-9x^2-20+4x-11)=\\=-7x^2-7x-7-7x^3+9x^2+20-4x+11=-7x^3+2x^2-11x+24\\\\ (5x^4+8x^2+2)+7(5x^4-3x^2)=5x^4+8x^2+2+35x^4-21x^2=\\=39x^4-13x^2+2[/tex]
Thanks for using our platform. We're always here to provide accurate and up-to-date answers to all your queries. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. Thank you for choosing Westonci.ca as your information source. We look forward to your next visit.