Question

find [x] and evaluate this
x-5/2​

Answer 1

Answer:

For x = 1

X(x – 5) + 2

1(1 – 5) + 2

-4 + 2 = -2

(ii) For x = 2 and y = 1

Xy2(x – 5y)

2 × 12(2 – 5 × 1)

2 × (2 – 5)

2 × (-3) = -6

(iii) For x = 2

2x(3x – 5) – 5(x – 2) – 18

2 × 2(3 × 2 – 5) – 5(2 – 2) – 18

4(6 – 5) – 5 × 0 – 18

4 – 18 = -14

Explanation:

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