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To calculate the reciprocal of any expression, divide 1 by that expression.

Q: What is the reciprocal of 2b?

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a-2b is a binomial. It has two terms: a, and -2b.

(a + 2b)(a + 2b)

12c + 2b

7 over 7 = 1 Then -2b divided by 1 = -2b

The simplified answer is: 4c+2b

Related questions

Let a + bi be the reciprocal. So (a + bi)(2 - 5i) = 1 (a + bi)(2 - 5i) = 2a - 5ai + 2bi + 5b = (2a + 5b) + (2b - 5a)i Therefore 2a + 5b = 1 and 2b - 5a = 0. Solving the simultaneous equations, we find that a = 2/29 and b = 5/29. So the reciprocal of 2 - 5i is 2/29 + 5i/29.

18h+4b-2b

a-2b is a binomial. It has two terms: a, and -2b.

=2b

a + 2b = c a = c - 2b

2B 2B or not 2B, that is the question.

-b+5b-2b=2b

4a+2b+a

-2b + 7 -3b = 2 -2b +7 -3b +2b = 2 + 2b 7 -3b + 3b = 2 + 2b +3b 7-2 = 2-2 + 2b + 3b 5 = 5b 1 = b

2b -5 = -3

2b x a = 2ab

(a + 2b)(a + 2b)