Answered

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please view the image to get a better understanding ..im stressing :((
*please include the work to show what Danielle did wrong
What is the sum of x³ + 5x² – 7 and
5x³ – 3x² + 2x – 1?

Please View The Image To Get A Better Understanding Im Stressing Please Include The Work To Show What Danielle Did Wrong What Is The Sum Of X 5x 7 And 5x 3x 2x class=

Sagot :

mkat21

Answer:

Daniella didn't do distributive property before she started.

Step-by-step explanation:

([tex]x^{3}[/tex]+5[tex]x^{2}[/tex]-7) + (5[tex]x^{3}[/tex]-3[tex]x^{2}[/tex]+2x-1)

5[tex]x^{6}[/tex]-3[tex]x^{5}[/tex]+2[tex]x^{4}[/tex]-1[tex]x^{3}[/tex]+25[tex]x^{5}[/tex]-15[tex]x^{4}[/tex]+10[tex]x^{3}[/tex]-5[tex]x^{2}[/tex]-35[tex]x^{3}[/tex]+21[tex]x^{2}[/tex]-14x+7

5[tex]x^{6}[/tex]+22[tex]x^{5}[/tex]-13[tex]x^{4}[/tex]-26[tex]x^{3}[/tex]+16x[tex]x^{2}[/tex]-14x+7

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