anitag92 anitag92

28-02-2021
Mathematics

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Multiply and combine like terms: (x-10)(x+9)

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LucaFontana LucaFontana

28-02-2021

Answer:

x^2-x-90

Step-by-step explanation:

x*x+(-10*9)+x*9+x*(-10)=x^2+9x-10x-90=x^2-x-90

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