Which of the following quadratic equations has sum of its roots as 4? (a) 2x^2 - 4x + 8 = 0 (b) -x^2 + 4x + 4 = 0 ... | MCQ 1m | Maths | SuperPadhai

Quadratic Equations > Question

MCQ1 markYear: 2023EasyCBSE Class 10

quadratic-equationssum-of-roots

Question

Which of the following quadratic equations has sum of its roots as

4

?
(a)

2 x^{2} - 4 x + 8 = 0

(b)

- x^{2} + 4 x + 4 = 0

(c)

2 x^{2} - \frac{2}{2} x + 1 = 0

(d)

4 x^{2} - 4 x + 4 = 0

Solution

1

For

- x^{2} + 4 x + 4 = 0

: Sum of roots

= \frac{- 4}{- 1} = 4

+1 mark

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