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Solving Equations Having the Variable on Both Sides

Question 7 If...

Question

Question 7
If p(x) = x + 3 , then p(x) + p(-x) is equal to

A) 3
B) 2x
C) 0
D) 6

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Solution

The answer is D.
Given p(x) = x +3 , put x = -x in the given equation,

We get, p (-x) = -x+3

Now, p(x) + p(-x) = x + 3 + (-x) + 3 = 6

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Similar questions

Question 7
If p(x) = x + 3 , then p(x) + p(-x) is equal to

A) 3
B) 2x
C) 0
D) 6

Q. If f(x) = x + 3, then f(x) + f(–x) is equal to
(a) 3
(b) 2x
(c) 0
(d) 6

p (x) = x + 3

p (x) + p (- x)

p (x) = 3 x - 7

p (x) + p (- x)

For the equation $3 x^{2}$ + px + 3 =0, p > 0 is one of the root is square of the other, then p is equal to

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Solving Equations Having the Variable on Both Sides

Standard IX Mathematics

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