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Mathematics

1 answer:

alexandr1967 [171]3 years ago

8 0

Answer:

9(4 +3)
5(9 +5)
8(2+9)

Step-by-step explanation:

Problems like these are aided immensely by your knowledge of multiplication tables.

1) 36 = 1·36 = 2·18 = 3·12 = 4·9 = 6·6

27 = 1·27 = 3·9

The greatest common factor is 9, so the sum can be written as 9(4+3).

2) 45 = 1·45 = 3·15 = 5·9

25 = 1·25 = 5·5

The greatest common factor is 5, so the sum can be written as 5(9+5).

3) 16 = 1·16 = 2·8 = 4·4

72 = 1·72 = 2·36 = 3·24 = 4·18 = 6·12 = 8·9

The greatest common factor is 8, so the sum can be written as 8(2+9).

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This is easily done after writing both complex numbers in exponential form:

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