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Finding the Value of an Expression

i If z = 10, ...

Question

If z = 10, find the value of $z^{3} - 3 (z - 10)$

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Solution

Given $z^{3} - 3 (z - 10)$
Putting $z = 10$
$= (10)^{3} - 3 (10 - 10)$
$= 1000 - 3 \times 0 = 1000 - 0 = 1000$

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Similar questions

z = 10

, find the value of

z^{3} - 3 (z - 10)

(i) If z = 10, find the value of z³ − 3 (z − 10).

(ii) If p = − 10, find the value of p² − 2p − 100

Q. Question 1
If the polynomials

a z^{3} + 4 z^{2} + 3 z - 4

z^{3} - 4 z + a

leave the same remainder when divided by z – 3, find the value of a.

| z + 2 - i | = 5,

then the maximum value of

| 3 z + 9 - 7 i |

x - 2 y + z = 0

y - z = 2

2 x - 3 z = 10

Find the value of

x, y, z

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Finding the Value of an Expression

Standard VII Mathematics

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