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Airida [17]
3 years ago
9

Factor completely: 36x2 - 49

Mathematics
1 answer:
Assoli18 [71]3 years ago
6 0
Remember this equation?
a^2 - b^2 = (a+b) (a-b)

So:
36x^2 - 49 =
(6x)^2 - (7)^2=
(6x+7) (6x-7)
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3
(
3
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x
−
12
=
−
2
Step 3: Add 12 to both sides.
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−
12
+
12
=
−
2
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