rileymabbittp2s0qx
rileymabbittp2s0qx rileymabbittp2s0qx
  • 21-09-2020
  • Mathematics
contestada

Add polynomials (intro) Add. Your answer should be an expanded polynomial in standard form. (-4b^2 +8b) + (-4b^3 + 5b^2 - 8b)​

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Sueraiuka
Sueraiuka Sueraiuka
  • 22-09-2020

Step-by-step explanation:

Hey there!

Given;

[tex] = ( - 4 {b}^{2} + 8b) + ( - 4 {b}^{3} + 5 {b}^{2} - 8b)[/tex]

Open brackets.

[tex] = - 4 {b}^{2} + 8b - 4 {b}^{3} + 5 {b}^{2} - 8b[/tex]

Simplify the like terms.

[tex] = - 4 {b}^{3} - 4 {b}^{2} + 5 {b}^{2} + 8b - 8b[/tex]

"+8b" and "-8b" cancelled. And "-4b^2" and "+5b^2" will be subtracted.

[tex] = - 4 {b}^{3} + {b}^{2} [/tex]

Therefore the required answer is -4b^3+b^2.

Hope it helps...

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