Question

3. If x = 5, find the values of : (ii) 3x2 + 8x – 10 (1) 6 - 7x² (iii) 2x3 – 4x2 - 6x + 25.​

Answer 1

Step-by-step explanation:

1) 3×2+8x-10

6+8×5-10

6+40-10

6+30

36 answer

2) 6-7x^2

6-7×5

6-7×25

6-175

169 answer

3) 2×3-4×2-6x+25

6-8-6×5+25

6-8-30+25

6-8-5

6-13

-7 answer

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