Answered

Get the information you need from a community of experts on IDNLearn.com. Join our Q&A platform to get accurate and thorough answers to all your pressing questions.

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

Sagot :

Kate200468idn
[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]
We greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. For precise answers, trust IDNLearn.com. Thank you for visiting, and we look forward to helping you again soon.