Question

what is the positive value of X in following quadratic equation
2x^2-7x= 15​

Answer 1

Answer:

5

Step-by-step explanation:

2x² - 7x -15 = 0

By middle term splitting

2x² - 10x + 3x - 15 = 0

2x(x-5) + 3 (x-5) = 0

(2x+3) (x-5) = 0

2x + 3 = 0 x-5=0

2x = -3 x = 5

x = - 3/2

So, the positive value of x is 5.

What is middle term splitting?...

It is the method by which the product of the constant term and the cofficient of x² is equal to the addition or subtraction of the cofficient of x.

Answer 2

Answer:

hi mate

here is your answer

positive answer of quadratic equation is

2x^2-7x=15

4x^2 -7 x=15

4x^2-7x-15=0

splitting

4x^2-20x+3x-15=0

4x(x-5) + 3(x-5)=0

(4x+3) (x-5)=0

x=-3/4

x=5

then answer will be positive 5

hope it helped u

mark me as brainliest

#samira ❤