Find the value of:
(i) 2x²- 3x + 4 when × = 2
(ii) 4x3 – 5x2 – 6x + 7 when x = 3
(iii) 3x3 + 9x2 – x + 8 when x = -2
(iv) 2x4 – 5x3 + 7x – 3 when x = -3
Solution:
If x = 5, find the value of:
(i) 6 – 7x2
(ii) 3x2 + 8x – 10
(iii) 2x3 – 4x2 – 6x + 25
Solution:
More Solutions:
- Find the value of: p³ + q³- r³ – 3pqr.
- The value of 3x – 2 is 1 when x = 0.
- For x = 2 and y = -3, verify the following:
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- Solve the following linear equations: 5x-6=12-x
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- In algebra, we use …………… to represent variables.
- If x is variable then 5x is also variable.