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PLEASE HELPPP!!!!Add or subtract show your work for each problem by using boxes circles colored underlined or group in to identify the like terms before you simplify. a.(-2x^2-4x+13)+(12x^2+2x-25)

b.(7x^2+4x-26)-(-7x^2-3x+15)

Respuesta :

Answer :

(a) [tex]10x^2+2x-12[/tex]

(b) [tex]14x^2+7x-41[/tex]

Step-by-step explanation :

Part a:

The given expression is:

[tex](-2x^2-4x+13)+(12x^2+2x-25)[/tex]

First we have to open the brackets.

[tex]-2x^2-4x+13+12x^2+2x-25[/tex]

Now adding or subtracting like terms like (x², x and number)

[tex]10x^2+2x-12[/tex]

Part b:

The given expression is:

[tex](7x^2+4x-26)-(-7x^2-3x+15)[/tex]

First we have to open the brackets.

[tex]7x^2+4x-26-+7x^2+3x-15[/tex]

Now adding or subtracting like terms like (x², x and number)

[tex]14x^2+7x-41[/tex]

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