MCQ
When we factorise $x^2 + 5x + 6,$ then we get:
- A$(x - 2) (x - 3)$
- B$(x \times 2) + (x \times 3)$
- ✓$(x + 2) (x + 3)$
- D$(x \times 2) - (x \times 3)$
✓
Answer
Correct option: C.
$(x + 2) (x + 3)$
C. $(x + 2) (x + 3)$
Solution:
The factors of a form:
$= (x + a) (x + b) = x^2 + (a + b) x + ab$
$= x^2 + 5x + 6$
$= a + b = 5$ and $ab = 6$
$= x^2 + 5x + 6 = (x + 2) (x + 3)$
Solution:
The factors of a form:
$= (x + a) (x + b) = x^2 + (a + b) x + ab$
$= x^2 + 5x + 6$
$= a + b = 5$ and $ab = 6$
$= x^2 + 5x + 6 = (x + 2) (x + 3)$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Tick $(\checkmark)$ the correct answer of the following: The square of a proper fraction is:
→Total number of outcomes, when a ball is drawn from a bag which contains $3$ red, $5$ black and $4$ blue balls is:
→The value of $x$ for which the expressions $3x - 4$ and $2x + 1$ become equal is:
→Observe the following bar graph and answer the related questions:
On which head/ heads, is the expenditure minimum?
On which head/ heads, is the expenditure minimum?
Both $u$ and $v$ vary directly with each other. When u is $10,$ v is $15$, which of the following is not a possible pair of corresponding values of $u$ and $v?$
→Which of the following is a binomial$?$
→The common factor $12y$ and $30$ is
→What is the percentage of students who got better than grade $C$ on test?
→Choose the correct statement:
In which of the following the two expressions are like terms?