Question

4x square + 40x+84=0
Chhota x
Bada x​

Answer 1

Step-by-step explanation:

16x+40×+84=0

56x+84=0

56×=0-84

56×=-84

×= -84/56

x=3/2 or 1 whole 1upon2

Answer 2

CORRECT QUESTION:

4x² + 40x + 84 = 0 in the quadratic equation . Find the value of x and mark which is greater.

ANSWER:

Given

Quadratic equation → 4x² + 40x + 84 = 0

Dividing both sides with 4

(4x² + 40x + 84)/4 = 0/4

4(x² + 10x + 21)/4 = 0

x² + 10x + 21 = 0

Splitting the middle term

→ x² + 7x + 3x + 21 = 0

→ x(x + 7) + 3(x + 7) = 0

→ (x + 7)(x + 3) = 0

x + 7 = 0

x = - 7

x + 3 = 0

x = -3

Hence x = -7 or -3 & -7 < -3