Question

is this a polynomial: -8x - 1/7x

Answer 1

is that last x under the fraction?

Answer 2

a poly is defined for all xs above of beside the fractions; cant have an x underneath

Answer 3

*above or beside

Answer 4

no, it is beside the seven that is underneath the 1

Answer 5

rather,7x is the denominator of the 1

Answer 6

then its not a poly; an xs cannot be in denominators for polys

Answer 7

\[P_n(x)=\sum_{k=0}^{n}c_kx^k\]

Answer 8

thank you so much. i may need you again momentarily, hang around, okay?

Answer 9

i cant make any promises, my internet is connected to my work, and work is almost over

Answer 10

is this a polynomial: -2x^-4y^-3

Answer 11

is that -3 an exponent?

Answer 12

yes and so is the -4

Answer 13

a negative exponent is a denominator, so to speak, polys can only have positive exponents

Answer 14

\[x^{-2}=\frac1{x^2}\]

Answer 15

what is the sum of these polynomials? (5a^4b^2+6a^2b)+(7a^2b-5a^4b^2)

Answer 16

just add up like terms

Answer 17

how do you solve this problem 15-z

Answer 18

(15-z)z what's the sum?

Answer 19

I'm sorry, what's the product?