Question

What number added to the polynomial $3x^{2} +5x$ gives the square of a first degree polynomial. Options- A. 25/12 B. 25/24 C. 25/36 D. 25/48 *No spamming or else you will be reported.* *Best and correct answer with full explanation will be surely marked as the brainliest*

Answer 1

Answer:

see answer is a option 25/12

Step-by-step explanation:

means in this equation

a = 3 and b= 5 and we have to find c

therefore let c be k

then use the formula

D=b²-4ac where D=0

D=b²-4ac where D=00= (5)²- 4(3)(k)

D=b²-4ac where D=00= (5)²- 4(3)(k)0= 25 - 12k

D=b²-4ac where D=00= (5)²- 4(3)(k)0= 25 - 12k -25 = -12k

- sign will be cancelled on both side

- sign will be cancelled on both side 25 = 12k

- sign will be cancelled on both side 25 = 12kk = 25/12

hope this will help you to understand the sum

if any problem you can ask me