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dalvyx [7]
3 years ago
8

An unknown polynomial is added to the expression -3x^3+2x-5 and the resulting sum is 4x^3+7x^2-3. what is the unknown polynomial

?
Mathematics
1 answer:
DENIUS [597]3 years ago
8 0

Answer:

7x³ + 7x² + 2x - 8

Step-by-step explanation:

Let the unknown polynomial be a

a + -3x³ + 2x - 5 = 4x³ + 7x² - 3

a = 4x³ + 7x² - 3 - (-3x³ + 2x - 5)

a = 4x³ + 7x² - 3 + 3x³ + 2x - 5

a = 7x³ + 7x² + 2x - 8

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How many like terms are in the expression? 14 x minus 14 y 7 minus x z 2 x 0 2 3 5.
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Like terms are those terms, which have the common variable with same powers.

The number of like terms in the given expression are 3, which is (14x,-x,2x). the option 3 is the correct option.

<h3>What is like terms?</h3>

In the algebra or the algebraic expression the like terms are those terms, which have the common variable with same powers.

Given information-

The given expression in the problem is,

14 x -14 y+ 7 - x+ z+ 2 x

The given expression is the algebraic expression which 3 number of unknowns variables.

There is total 6 terms in the given expression. In which 5 terms consists the variables and one term is constant.

In the given expression,

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  • The total number of terms with variable z is 1 which is z.
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Thus the number of like terms in the given expression are 3, which is (14x,-x,2x). the option 3 is the correct option.

Learn more about the  like terms here;

brainly.com/question/1779134

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A

Step-by-step explanation:

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