Question
Solve the following quadratic equations by factorization:
$\text{x}^2-\Big(\sqrt{3}+1\Big)\text{x}+\sqrt{3}=0$

Answer

$\text{x}^2-\Big(\sqrt{3}+1\Big)\text{x}+\sqrt{3}=0$$\Rightarrow\text{x}^2-\sqrt{3}\text{x}-\text{x}+\sqrt{3}=0$
$\Rightarrow\text{x}\Big(\text{x}-\sqrt{3}\Big)-1\Big(\text{x}-\sqrt{3}\Big)=0$
$\Rightarrow\Big(\text{x}-\sqrt{3}\Big)(\text{x}-1)=0$
Either $\text{x}-\sqrt{3}=0,$ then $\text{x}=\sqrt{3}$
or $\text{x}-1=0,$ then $\text{x}=1$
$\therefore$ Roots are $\text{x}=\sqrt{3},1$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

In a $\triangle\text{ABC,D}\ \text{and E}$ are points on the sides AB and AC respectively such that DE || BC.
If AD = 6cm, DB = 9cm and AE = 8cm, find AC.
Write the first three terms of the APs when a and d are as given below: $\text{a}=\sqrt{2},\text{d}=\frac{1}{\sqrt{2}}.$
The slant height of the frustum of a cone is $4\ cm$ and the perimeters of its circular ends are $18\ cm$ and $6\ cm$. Find the curved surface of the frustum.
If $3\tan\theta=4,$ find the value of $\frac{4\cos\theta-\sin\theta}{2\cos\theta+\sin\theta}.$
In the following, one of the six trigonometric ratios is given. Find the values of the other trigonometric ratios.
$\tan\theta=\frac{8}{15}$
Prove the following trigonometric identities.
$\frac{1+\tan^2\theta}{1+\cot^2\theta}=\Big(\frac{1-\tan\theta}{1-\cot\theta}\Big)^2=\tan^2\theta$
A sum of ₹ 2800 is to be used to award four prizes. If each prize after the first is ₹ 200 less than the preceding prize, find the value of each of the prizes.
Find the roots of the quadratic equations by using the quadratic formula in each of the following:
$-3x^2 + 5x + 12 = 0.$
In a school, students decided to plant trees in and around the school to reduce air pollution. It was decided that the number of trees, that each section of each class will plant, will be double of the class in which they are studying. If there are $1$ to $12$ classes in the school and each class has two sections, find how many trees were planted by the students.
From a rectangular sheet of paper ABCD with AB = 40cm and AD = 28cm, a semicircular portion with BC as diameter is cut off. Find the area of the remaining paper.