Write $$$(x+1)(x-3)^{2}$$$ in the form $$$a x^{3}+b x^{2}+c x+d$$$. .............................................

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_w20_qp_43 Year：2020 Question No：7(b)(ii)

Answer:

$x^{3}-5 x^{2}+3 x+9$ final answer

Knowledge points:

E2.2.1 Manipulate directed numbers.

E2.2.2 Use brackets and extract common factors.

E2.2.3 Expand products of algebraic expressions. (e.g. expand (x + 4)(x – 7)) (Includes products of more than two brackets, e.g. (x + 4)(x – 7)(2x + 1))

Solution:

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Write $$\((x+1)(x-3)^{2}\)$$ in the form $$\(a x^{3}+b x^{2}+c x+d\)$$. .............................................

Answer:

Knowledge points:

Solution:

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