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11. What is the middle term of the product of (A+B)?
a AB
b. A2B2
C. 2AB
d. 2A2B2
12. Which of the following steps is not included in squaring a trinomial?
a. Square the first second and third terms.
b. Twice the product of the first & second terms, first &third terms and second & third
terms
Get the sum of step (a) and step (b).
d.
Twice the sum of the product of the terms.
13. What do you call an expression that is contained in every term of an algebraic expression?
a.polynomial
b.coefficients
c.variable
d.common factor​