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You can help me with any one of these equations I would really appreciate it but also please provide step-by-step explanation thank you I will choose Brainly

You Can Help Me With Any One Of These Equations I Would Really Appreciate It But Also Please Provide Stepbystep Explanation Thank You I Will Choose Brainly class=

Sagot :

[tex][Hello,BrainlyUser][/tex]

Answer:

[5] [tex]2x^2+xy+-3y^2[/tex]

[6] [tex]2x^3+-7x^2+-3x[/tex]

[7] [tex]4a+2b[/tex]

[8] [tex]6x+2y-5[/tex]

[9] [tex]x^2-3xy-10y+75[/tex]

Step-by-step explanation:

Let's start with [5]

[tex]3x^2-2xy-2x^2-(x^2-3xy+y^2)[/tex]

Distribute the Negative Sign:

[tex]=3x^2-2xy-2y^2-1(x^2-3xy+y^2)[/tex]

[tex]=3x^2+-2xy+-2y^2+-1x^2+-1(-3xy)+-1y^2[/tex]

[tex]=3x^2+-2xy+-2y^2+-x^2+3xy+-y^2[/tex]

Combine like term

[tex]=3x^2+-2xy+-2y^2+-x^2+3xy+-y^2[/tex]

[tex]=(3x^2+-1x^2)+(-2xy+3xy)+(-2y^2+-y^2)[/tex]

[tex]=2x^2+xy+-3y^2[/tex]

Answer = [tex]2x^2+xy+-3y^2[/tex]

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[6] [tex]\left(2x^3-5x^2-3x\right)-2x^2[/tex]

Combine like terms

[tex]\left(2x^3-5x^2-3x\right)-2x^2[/tex]

[tex]=(2x^2)+(-5x^2+-2x^2)+(-3x)[/tex]

[tex]=2x^3+-7x^2+-3x[/tex]

Answer = [tex]2x^3+-7x^2+-3x[/tex]

-------------------------------------------------------------------------------------------------------------     [7]  [tex]4a-(3a-2b)+3a[/tex]

[tex]=4a+-3a+2b+3a[/tex]

Combine like terms:

[tex]=(4a+-3a+3a)+(2b)[/tex]

[tex]=4a+2b[/tex]

Answer = [tex]4a+2b[/tex]

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[8]  [tex]\left[3x-\left[x-4x+2y\right)+4y\right]-5[/tex]

[tex]3x-(-3x-2y+4y)-5[/tex]

[tex]=3x-(-3x+2y)-5[/tex]

[tex]=3x+3x-2y-5[/tex]

[tex]=6x-2y-5[/tex]

Answer = [tex]6x-2y-5[/tex]

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[9] [tex]x^2-3xy+5\left\{2+\left[y-3\left(y-6\right)-5\right]\right\}[/tex]

Combine likes terms

[tex]x^2-3xy-10y+75[/tex]

Answer = [tex]x^2-3xy-10y+75[/tex]

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