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Abel Day
Mathematics
27 December, 11:45
Factor the expression 4b^2-9
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Ernesto
27 December, 11:47
0
(2b - 3) (2b + 3)
Step-by-step explanation:
4b² - 9 ← is a difference of squares and factors in general as
a² - b² = (a - b) (a + b)
4b² = (2b) ² ⇒ a = 2b and 9 = 3² ⇒ b = 3, so
4b² - 9 = (2b) ² - 3² = (2b - 3) (2b + 3)
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Dominique Wells
27 December, 12:09
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answer is 7
Step-by-step explanation:
4b squared minus 9,16 is 4b squared because 4 time 4 is 16. thats how you would solve squared. then you want to minus 16 by 9, then your answer should be 7.
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