Expanding brackets | Revision Server | Page 1

modest granite Jul 31, 2023, 2:17 PM

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I’ve worked out a but how would I work out b and c?

vocal sail Jul 31, 2023, 2:24 PM

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expand it then compare coefficients

worn dust Jul 31, 2023, 2:24 PM

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Expand fully the left side's brackets. You've got that a = 5 but getting all the values of x² or x will let you find b. Once you've done that, you can do -1 × 2 × b to find c

modest granite Jul 31, 2023, 2:26 PM

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Ah okay I’ll try that thanks

vocal sail Jul 31, 2023, 2:31 PM

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not too sure about the value of c

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@modest granite

#Expanding brackets