4 years ago

What is the factored form of the expression? 49b^2 – 64

Mathematics

1 answer:

nika2105 [10]4 years ago

4 0

Answer:

(7b-8) (7b+8)

Step-by-step explanation:

49b^2 – 64

This is the difference of squares

(a^2 -c^2) = (a-c) (a+c)

a^2 = 49b^2 so a = 7b

c^2 = 64 so c = 8

(49b^2 -64) = (7b-8) (7b+8)

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3 years ago

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Which equation shows an example of the associative property of addition? (–7 i) 7i = –7 (i 7i) (–7 i) 7i = 7i (–7i i) 7i × (–7i

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The equation which shows the associative property of addition is; (–7 + i) +7i = –7 (i +7i).

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Associative property of addition postulates that Changing the grouping of addends does not change the sum of the numbers. As an instance, ( 5 + 3 ) + 4 = 5 + ( 3 + 4 )

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2 years ago

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11111nata11111 [884]

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Step-by-step explanation:

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