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What is the sum or difference 4x10 – 9x10 (1 point) –5x10 –5x20 –36x10 –36x20

this is the cca test I need all the answers this is the first 2

Respuesta :

4×10-9×10=-50
-5×10-5×20-36×10-36×20=-870

(a) [tex] 4x^{10} - 9x^{10} [/tex]

Both terms [tex] 4x^{10} [/tex] and [tex] - 9x^{10} [/tex] are like terms

They have same exponent [tex] x^{10} [/tex]

So we add or subtract the coefficents

4 - 9 is -5

[tex] 4x^{10} - 9x^{10} [/tex] = [tex] - 5x^{10} [/tex]

(b) [tex] -5x^{10} - 5x^{20} - 36x^{10} - 36x^{20} [/tex]

Combine like terms by adding or subtracting the coefficient of like terms

[tex] -5x^{10} - 36x^{10} - 5x^{20} - 36x^{20} [/tex]

[tex] -41x^{10} - 41x^{20} [/tex]

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