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6. Algebraic Expressions and Identities
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Q1 of 116 Page 6

Multiply:

(5x + 3) × (7x + 2)

= 5x (7x + 2) + 3 (7x + 2)


= 35x2 + 10x + 21x + 6


= 35x2 + 31x + 6


More from this chapter

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19

Multiply the monomial by the binomial and find the value of each for x=-1, y=0.25 and z=0.005:

(i) 15y2 (2-3x)


(ii) -3x (y2+z2)


(iii) z2 (x-y)


(iv) xz(x+y2)

20

Simplify:

2

Multiply:

3

Multiply:

Questions · 116
6. Algebraic Expressions and Identities
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