Exercise 12.3 1. If x= 3, find the value of: 1 2x-3 (ii) X - 1 4x (iii) 4x - 4 1 3 (iv) 4x2 - 2x - 5 m 。 2
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Let the polynomials p(x) = 5x - 4x2 + 3
i) p(0) = 5(0) - 4(0)2 + 3
= 0 - 0 + 3
= 3
ii) p(-1) = 5(-1) - 4(-1)² + 3
= -5 - 4 + 3
= -6
iii) p(2) = 5(2) - 4(2)2 + 3
= 10 - 16 + 3
= -3
Step-by-step explanation:
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