Which value of a would make the following expression completely factored? x2 – a


Asked by maham237 @ in Mathematics viewed by 559 People


A.12.
B.36.
C.49.
D.81

Answered by maham237 @



The answer to the the question is (x-a) (x+a).
Solution:
x-a
x+a
-------------
ax - a
x2 - ax
-----------------------
x2 + 0 - a or x2 -a



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