fernandezkadie336 fernandezkadie336

19-09-2022
Mathematics

contestada

please help me
Here are two expressions whose sum is a new expression, A.

(2x2+5)+(6x□−7)=A
Select all the values that we can put in the box so that A is a polynomial.

please help me Here are two expressions whose sum is a new expression A 2x256x7A Select all the values that we can put in the box so that A is a polynomial class=

please help me Here are two expressions whose sum is a new expression A 2x256x7A Select all the values that we can put in the box so that A is a polynomial class=

Respuesta :

rvkacademic rvkacademic

19-09-2022

Answer:

D, F and G

Step-by-step explanation:

A polynomial must have a negative exponent for the variable term. So we can eliminate A, B and C

Also no fractional exponents so eliminate E

F & G are positive exponents so acceptable

D has the exponent 0 so the term becomes (2x² + 5) + (6x⁰ + 7)
x⁰ = 1 so the expression becomes 2x² + 5 + 6 + 7 = 2x² + 18 which is a polynomial.

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