2. What is the sum of 4b²-4b + 4 and 8b²-b+1?
A. 4b²-5b +4
B. 4b²+ 5b + 4
C.12b²-5b+4
D.12b²+5b+4​


Sagot :

SUM OF POLYNOMIALS

2. What is the sum of 4b²-4b + 4 and 8b²-b+1?

A. 4b²-5b +4

B. 4b²+ 5b + 4

C. 12b²-5b+4

D. 12b²+5b+4

(4b² - 4b + 4) + (8b² - b + 1)

Combine like terms.

(4b² - 4b + 4) + (8b² - b + 1)

(4b² + 8b²) + ((-4b) + (- b)) + (4 + 1)

= 12b² - 5b + 5 (none of the choices)

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