2 years ago

9(2a – b)2 – 4(2a – b) – 13

Mathematics

1 answer:

elena-s [515]2 years ago

3 0

18(2a-b)-4(2a-b)-13
=36a-18b-8a+4b-13
Rearrange
=36a-8a-18b+4b-13
=28a-14b-13

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Answer: The answer is 6.

The number sentence is

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Step-by-step explanation:

To solve $13-7$ , by making ten

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Then break 7 as $7=3+4$

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