Question

What is the value of 5x25 - 3x32 + 2x-12 at x=1?
I. 0
II. 2
III. 4
IV. None of these

Answer 1

Answer: part III. is the answer that's 4

Step-by-step explanation:

5x^25-3x^32+2x^-12

By putting value of x = 1

5(1)^25-3(1)^32+2(1)^-12

5×(1)-3×(1)+2×(1)

If we give 1 any raised power the answer is always 1 .e.g 1^4= 1×1×1×1=1

=5-3+2. = 2+2. = 4

Answer 2

The value of $\bf 5 {x}^{25} - 3 {x}^{32} + 2x - 12$ is -8 at x=1 .

Option IV is correct.

Given:

• $5 {x}^{25} - 3 {x}^{32} + 2x - 12$

To find:

• Value of given expressions at x=1.

Solution:

Step 1:

Put x= 1 in the expression.

$= 5 {(1)}^{25} - 3 {(1)}^{32} + 2(1) - 12$

or

$= 5 - 3 + 2 - 12$

Step 2:

Solve the result of step 1.

$= 7 - 15$

or

$= - 8$

Thus,

The value of $5 {x}^{25} - 3 {x}^{32} + 2x - 12$ at x=1 is -8.

Option IV is correct.

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