Question

The statement for the equation,

x

2 +2x = 15 is…​

Answer 1

Given : x² + 2x  = 15

To Find : statement for the equation,

Solution:

Twice of a number added to square of the number  is 15

x² + 2x  = 15

=>  x² + 2x  - 15 = 0

=> x² + 5x - 3x  - 15 = 0

=> x(x + 5) - 3(x + 5) = 0

=> (x - 3)(x + 5) = 0

=>  x = 3 , x = - 5

Numbers are 3 and  -5

Twice of a number added to square of the number  is 15

then numbers are -3 and - 5

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Answer 2

SOLUTION

TO DETERMINE

The statement for the equation

$\sf{ {x}^{2} + 2x = 15}$

EVALUATION

Here the given equation is

$\sf{ {x}^{2} + 2x = 15}$

The statement for the equation is :

The difference between length and breadth of a rectangular field is 2 cm and area of the filed is 15 cm² . Form the quadratic equation and find the dimensions of the field

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