The roots of the equation x2-18 x-45-0 areA- -3-15 B- -3-15- 3-15D- 3-15

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XI

Mathematics

Selecting Consecutive Terms in A.P

The roots of ...

Question

The roots of the equation $x^{2} - 18 x + 45 = 0$ are

- 3, 15

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 3, - 15

No worries! We‘ve got your back. Try BYJU‘S free classes today!

3, - 15

No worries! We‘ve got your back. Try BYJU‘S free classes today!

3, 15

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $3, 15$
$x^{2} - 18 x + 45 = 0$
$x (x - 15) - 3 (x - 15) = 0$
$x = 3, 15$

Suggest Corrections

Similar questions

Let a, b, c be the sides of a triangle, no two of them are equal and $λ \in R$ . If the roots of the equation $x^{2} + 2 (a + b + c) x + 3 λ$ ( ab + bc +ca ) = 0 are real, then

Q. The product of the real roots of the equation,

x^{2} + 18 x + 30 = 2 \sqrt{x^{2} + 18 x + 45}

, is

Q. (a) Prove that the roots of

{(a - b)}^{2} x^{2} + 2 (a + b - 2 c) x + 1 = 0

are real or imaginary according as c does not does lie between a and b,a<b.
(b) If the roots of the equation

(m - 3) x^{2} - 2 m x + 5 m = 0

are real and

+ i v e

, then prove that

m ϵ] 3, \frac{15}{4}]

x^{2} + 2 (a + 1) x + 9 a - 5 = 0

has only negative roots, then show that

a \geq 6

.
(d) If both the roots of the equation

x^{2} - 6 a x + 2 + 2 a + 9 a^{2} = 0

exceed

3

, then show that

a > \frac{11}{9}

Q. The point

(3, 15)

passes through the line represented by the equation .

Q. The point (3,15) passes through the line represented by the equation .

Join BYJU'S Learning Program

The roots of the equation x2 –18x+45=0 are

The correct option is D 3,15 x2 –18x+45=0 x (x−15) –3(x−15)=0 x = 3, 15

The roots of the equation $x^{2} - 18 x + 45 = 0$ are

The correct option is D $3, 15$
$x^{2} - 18 x + 45 = 0$
$x (x - 15) - 3 (x - 15) = 0$
$x = 3, 15$