Answer:25/4
x2 - 5x + _____ = 7. Summary: The constant term that should be used to complete the square? x2 - 5x + _____ = 7 is 25/4.
Step-by-step explanation: hope this helps you
Hello,
y-3x=2==>x=(y-2)/3
==>(x+1)²=((y-2)/3+1)²=(y+1)²/9
y=(x+1)²-5
==>y=(y²+2y1)/9 -5
==>y²-7y-44=0 ; Δ=7²+4*44=225=15²
==>y=(7+15)/2 or y=(7-15)/2
==>y =11 and x=(11-2)/3=3
or y=-4 and x=(-4-2)/3=-2
sol={(3,11);(-2,-4)}
Answer:
I think A is the answer
but D is the correct answer "kunno"
Step-by-step explanation:
hope it helps :)
(N instead of X for variable)
N x 7 < 21
