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KatRina [158]
3 years ago
15

How to factorise 5x square -20?

Mathematics
1 answer:
iren [92.7K]3 years ago
7 0

Answer:

5(x² - 4)

Step-by-step explanation:

5x² - 20

5 can divide both 5 and 20, 5x²/5 and -20/5 = x² and -4

5(x² - 4), to know if you are correct, multiply 5 by the bracket and you get the question back

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