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Lovielgo
Answered

(7x² – 1) + (2x² +7)=

A. 9x² + 6
B. 2x³ + 6x² – 12
C. 8x² + 2
D. 2x³ + 2

Sagot :

Cancer37go

Answer:

a letter A po Ang sagot

Step-by-step explanation:

=7x2+−1+2x2+7

=(7x2+2x2)+(−1+7)

=9x²+6

IchiHideakiSachikogo

Answer:

A. 9x² + 6

Step-by-step explanation:

(7x² - 1) + (2x²+7)

7x² - 1 + 2x² + 7

9x² - 1 + 7

=9x² + 6

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