Selina solutions

Selina solutions

Grade 6

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subject-cta

Question 10

Q10) If x = – 6, evaluate :

(i) 11x

(ii)4x^2

(iii)2x^3

Solution:

(i) 11x

= 11 x (-6)

= -66

(ii)4x^2

= 4 x (-6) x (-6)

= 4 x 36

= 144

(iii)2x^3

= 2 x (-6) x (-6) x (-6)

= -432

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