Question

which rational number is to be added and subtracted in the quadratic polynomial $x^2+3x+1$complete the square .....
Answer:9/4
I need step by step explanation

❌pl don't spam❌
⚠spammers will be reported ⚠​

Answer 1

1x²+3x+1=0

There is Coffcient of x²=1

So, we have to Multiply -1/2 to Coffcient of x and have to square it...

$( \frac{ - 1}{2} \times coffcient \: of \: x)^{2}$

$( \frac{ - 1}{2} \times 3)^{2}$

$( \frac{ - 3}{2} )^{2}$

$\frac{9}{4}$

Answer 2

Refer the following attachment for step by step explanation