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Algebra 12 Online
OpenStudy (anonymous):

Please help will give medal!

OpenStudy (anonymous):

Given the expression –10p2q + 7p3q – 5q, do the following as instructed below: A. Write the polynomial in descending order. B. Classify the polynomial by the number of terms C. State the degree of the polynomial.

OpenStudy (itsmichelle29):

????

OpenStudy (itsmichelle29):

ohh

OpenStudy (anonymous):

I just need help with B and C

OpenStudy (welshfella):

there are 3 terms so its a tri - something

OpenStudy (anonymous):

trinomial

OpenStudy (welshfella):

right

OpenStudy (welshfella):

and the degree is the highest exponent

OpenStudy (anonymous):

Is it 8?

OpenStudy (welshfella):

in a particular term for example 6pq has degree 2 2p5q = degree 6

OpenStudy (anonymous):

do I add up the degrees?

OpenStudy (welshfella):

No not 8 look at each variable and add up the exponents

OpenStudy (welshfella):

5q is only 1 degree

OpenStudy (welshfella):

because its q^1

OpenStudy (welshfella):

ignore the numbers before the variables

OpenStudy (anonymous):

So it would be eight because p^2=2 and q=1 and p^3=3 right?

OpenStudy (anonymous):

I miss counted I actually got nine.

OpenStudy (welshfella):

No - you don't add up the exponents in all the terms you find the term which has the highest count of exponents Thats the degree

OpenStudy (anonymous):

So 7p^3q

OpenStudy (welshfella):

for example the trinomial x^2y + y^2 + y has degree 3 because x^2 y has 2+1 = 3 exponents

OpenStudy (welshfella):

yes 7p^3 q has highest degree 4

OpenStudy (anonymous):

Thanks!

OpenStudy (welshfella):

so the answer to C is 4

OpenStudy (welshfella):

yw

OpenStudy (welshfella):

so in descending order its 7p^3q -10p^2q – 5q

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