FACTORIZAR LOS SIGUIENTES POLINOMIOS.
a2 - 81 =
1 answer:
Answer:
(a+9)(a-9)
Step-by-step explanation:
Both terms are perfect squares, use the difference of squares formula
a^2-b^2=(a+b)(a-b) where a=a and b=9
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Associative property and distributive property
Answer:
44
Step-by-step explanation:
1. 8x8=64
2.64-20=44
Answer; 44
W/4 divide the two to find the quotient
