1. Products that occur frequently in algebra and have patterns which make them easy to obtain is called
A. factors
C. special products
B. products of binomials
D. perfect square trinomials
2. Which of the following factors show the sum and difference of two terms?
A. (x - 5)(x - 5)
C. (-x - 5)(x - 5)
B. (x + 5)(x - 5)
D. (-x+5)(x - 5)
3. Which of the following is a square of a binomial?
A. (x + 2)(x+2)
C. (x - 1)(x + 6)
B. (x - 4)(x + 8)
D. (2x - 9)(2x + 1)
4. How many terms will be the result of finding the cube of a binomial?
A. one
B. two
C. three
D. four
5. The expanded form of (3x + 4) is
A. 3x2 + 12x + 16
B. 3x2 + 24x + 16
C. 9x2 + 12x +16
D. 9x2 + 24x + 16
Answers
1 Question answer is option C
Answer 1) :- Products that occur frequently in algebra and have patterns which make them easy to obtain is called special products. (C) .
Answer 2) :-
The sum and difference of two terms is in the form of (a + b)(a - b) .
so, (B) (x + 5)(x - 5) is correct option.
Answer 3) :-
square of a binomial in the form of (a + b)(a + b) .
so, (A) (x + 2)(x + 2) shows square of a binomial .
Answer 4) :-
Their are (C) 3 terms while finding the cube of a binomial .
Answer 5) :-
The expanded form of (3x + 4)² is get by using (a + b)² = a² + 2ab + b²
→ (3x + 4)²
→ (3x)² + 2 * 3x * 4 + (4)²
→ 9x² + 24x + 16 (D) .
Learn more :-
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