Answer:
a- defined term
Step-by-step explanation:
The statement is defining an angle.
one term is monomial
two terms are binomials
three terms are trinomials
each term is separated by a + or - sign
so......6 has only one term ......it is a monomial
The 3 consecutive numbers are 41, 42, and 43 : 41+42+43= 126
AB + C
= (x + 1)(x^2 + 2x - 1) + 2x
= x^3 + 2x^2 - x + x^2 + 2x - 1 + 2x
= x^3 + 3x^2 + 3x - 1
