How do you factor (x² - 2x - 8)?
How do you factor (x² - 2x - 8)?
Aniket Singh , 7 Months ago
Grade
11 grade maths others> How do you factor (x² - 2x - 8)?...
1 AnswersAskiitians Tutor Team
To factor the expression \(x² - 2x - 8\), we need to find two numbers that multiply to -8 (the constant term) and add up to -2 (the coefficient of the x term).
Finding the Numbers
The numbers that meet these criteria are -4 and 2, since:
- -4 × 2 = -8
- -4 + 2 = -2
Writing the Factored Form
Using these numbers, we can express the quadratic as:
(x - 4)(x + 2)
Final Result
Thus, the factored form of \(x² - 2x - 8\) is:
(x - 4)(x + 2)
Approved Last Activity: 7 Months ago
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on 11 grade maths others
How to use de moivre’s theorem to express ⅙ sin 6θ / sin θ as a polynomial in cos θ?
How to use de moivre’s theorem to express ⅙ sin 6θ / sin θ as a polynomial in cos θ?
Grade 11 > 11 grade maths others
1 Answer Available
Last Activity: 6 Months ago
Two pillars of equal height stand on either side of a road-way which is 60 m wide. At a point in the road-way between the pillars, the elevation of the top of the pillars is 60° and 30°. The height of the pillar is:
- A. 15√3 m
- B. 15/√3 m
- C. 15 m
- D. 20 m
Two pillars of equal height stand on either side of a road-way which is 60 m wide. At a point in the road-way between the pillars, the elevation of the top of the pillars is 60° and 30°. The height of the pillar is:
- A. 15√3 m
- B. 15/√3 m
- C. 15 m
- D. 20 m
Grade 11 > 11 grade maths others
1 Answer Available
Last Activity: 6 Months ago
Two distinct numbers are picked randomly from the first ten natural numbers. Find the probability that the L.C.M of the two numbers is 6.
Two distinct numbers are picked randomly from the first ten natural numbers. Find the probability that the L.C.M of the two numbers is 6.
Grade 11 > 11 grade maths others
1 Answer Available
Last Activity: 6 Months ago
How many two digit numbers are divisible by 5 such that remainder is 1.
How many two digit numbers are divisible by 5 such that remainder is 1.
Grade 11 > 11 grade maths others
1 Answer Available
Last Activity: 6 Months ago
How many two digit numbers are divisible by 4?
- A. 21
- B. 22
- C. 24
- D. 25
How many two digit numbers are divisible by 4?
- A. 21
- B. 22
- C. 24
- D. 25
Grade 11 > 11 grade maths others
1 Answer Available
Last Activity: 6 Months ago