If 5x2 - 3x - 2 - 0- then x - 3- -2-5-

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Standard X

Mathematics

GCD of Polynomials

If 5x2 - 3x...

Question

If $5 x^{2} - 3 x - 2 = 0$ , then $x = 3, - \frac{2}{5}$ .

Yes

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Ambiguous

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Solution

The correct option is B No
Given equation is, $5 x^{2} - 3 x - 2 = 0$
Solving by factorisation method,
$5 x^{2} - 5 x + 2 x - 2 = 0$
$(5 x + 2) (x - 1) = 0$
$∴ x = 1, \frac{- 2}{5}$

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Similar questions

Q. If

\frac{9 x^{2} - 4}{\sqrt{5 x^{2} - 1}} \leq 3 x + 2,

then

x \in

Solve the following equation:

\frac{2 x - 3}{x^{2} - 2 x + 3} = \frac{3 x - 5}{x^{2} - 3 x + 5}

x

lies in

[0, 2]

If true then enter

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and if false then enter

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Question 9
Which of the following equation has two distinct real roots?
(a) $2 x^{2} - 3 \sqrt{2} x + \frac{9}{4} = 0$
(b) $x^{2} + x - 5 = 0$
(c) $x^{2} + 3 x + 2 \sqrt{2} = 0$
(d) $5 x^{2} - 3 x + 1 = 0$

Q. Solve the following equations
(i)

\frac{2 x - 3}{x^{2} - 2 x + 3} = \frac{3 x - 5}{x^{2} - 3 x + 5}

(ii)

\frac{3 x^{2} + 21 x + 4}{3 x^{2} + 27 x + 5} = \frac{x + 7}{x + 9}

Q. State true or false:

\frac{2}{5} x^{2} - x - \frac{3}{5} = 0

, then the roots are

- \frac{1}{2}, 3

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If 5x2−3x−2=0, then x=3,−25.

The correct option is B NoGiven equation is, 5x2−3x−2=0Solving by factorisation method,5x2−5x+2x−2=0(5x+2)(x−1)=0∴x=1,−25

If $5 x^{2} - 3 x - 2 = 0$ , then $x = 3, - \frac{2}{5}$ .

The correct option is B No
Given equation is, $5 x^{2} - 3 x - 2 = 0$
Solving by factorisation method,
$5 x^{2} - 5 x + 2 x - 2 = 0$
$(5 x + 2) (x - 1) = 0$
$∴ x = 1, \frac{- 2}{5}$