Question

the Square of numbers is 15 lesser than twice the number​

Answer 1

Answer:

X=3,X=-5

Step-by-step explanation:

Xsquare=15-2X

Xsquare+2X+15=0

Xsquare+5X-3X+15=0

X(X+5)-3(X+5)=0

(X+5)(X-3)=0

HENCE,X=-5 or X=3