3 years ago

HELP ASAPPPPPPP PLZZZZZZZ

1 answer:

7 0

Answer:

Step-by-step explanation:

If you added x to the equation, then it would become x²+4x+9=0, which is a perfect quadratic square

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natali 33 [55]

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Musya8 [376]

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LuckyWell [14K]

Hello,

Step-by-step explanation:

90 = 9 x 10 = (7 + 2) x 10 = 70 + 20

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3 years ago