dasiab60 dasiab60

26-05-2020
Mathematics

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If a =3x^2+5x-6 and b =-2x^2 -6x+7 then A - B equals

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osikbro osikbro

26-05-2020

Answer:

[tex]5x^2+11x-13[/tex]

Step-by-step explanation:

[tex]a=3x^2+5x-6\\b=-2x^2-6x+7[/tex]

[tex]a-b=(3x^2+5x-6)-(-2x^2-6x+7)=\\3x^2+5x-6+2x^2+6x-7=\\5x^2+11x-13[/tex]

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