Answer:
first you must correctly place the equestion it can be x2+4×=9
STEP BY STEP EXPLANATION:
when we are going to the next
x2+4x=9
x2/2+4x=9/2 means simplify by dividing by 2
x+4x=4.5
so x+4x=5x so when we write the statement
5x=4.5
5x/5=4.5/5
x=0.9 so finally we found our answer
