Question

4. Find the value of 5x2 – 3x + 7 when with solutions
(i) x = 0,
(ii) x = 3,
(iii) x = -4,
(iv) x = ½.​

Answer 1

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Answer 2

Answer:

5×0^2-3×0+7

= 0-0+7

= 7

5×3^2-3×3+7

= 5× 9 -9+7

= 44-2

= 42

5×-4^2-3×4+7

= 5×16-12+7

= 80-5

= 75