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Mathematics
Frederick Stone
27 August, 11:59
Factor the expression
9x^2-16
+5
Answers (
1
)
Dutches
27 August, 13:33
0
(3x-4) (3x+4)
Step-by-step explanation:
9x^2-16
9x^2 is a product of squares = (3x) ^2
16 is a product of squares = 4^2
so
9x^2-16 is the difference of squares
(a^2 - b^2) = (a-b) (a+b) where a = 3x and b = 4
9x^2-16 = (3x-4) (3x+4)
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