Question

please answer fast . ❌
If x=2, find the value of each of the following ​

Answer 1

Answer:

33 & 29

Step-by-step explanation:

iii) 3x^3 + 2x^2 + 1 = 3(2^3) + 2(2^2) + 1 = 3 * 8 + 2 * 4 + 1 = 24 + 8 + 1 = 33

iv) 4x^3 - 2x^2 - x + 7 = 4(2^3) - 2(2^2) - 2 + 7 = 4 * 8 - 2 * 4 - 2 + 7 = 32 - 8 - 2 + 7 = 29

Answer 2

Step-by-step explanation:

3×(2)³ +2×(2)²+1

3×8+2×4+1

24+8+1

=33

4×(2)³-2×(2)²-2+7

4×8-2×4-2+7

32-8×7

24×7

=168