i. Given that (x + 2) and (x + 3) are factors of 5x 3 + ax
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i. Given that (x + 2) and (x + 3) are factors of 5x3 + ax2 + b, find the values of the constants a and b.
ii. When a and b have these values, factorise 5x3 + ax2 + b completely, and hence solve the equation 53y+1 + a x 52 y + b = 0, giving any answers correct to 3 significant figures.
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i Since x 2 and x 3 are factors of 5x3 ax2 b we can write ...View the full answer
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Related Book For
Cambridge International AS & A Level Mathematics Pure Mathematics 2 & 3 Coursebook
ISBN: 9781108407199
1st Edition
Authors: Sue Pemberton, Julianne Hughes, Julian Gilbey
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