Find the value of: 2x² – 3x + 4 when × = 2

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:

ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 9 Algebra Ex 9.4 3

If x = 5, find the value of:
(i) 6 – 7x2
(ii) 3x2 + 8x – 10
(iii) 2x3 – 4x2 – 6x + 25

Solution:

ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 9 Algebra Ex 9.4 4

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