Answer:
1/4
Step-by-step explanation:
when multiply fraction you multiply the fration across so in this case
1/2x1/2 = 1/4
-
(x-25) = 7 multiply 5 to both sides first
-(x-25) = 35 then expand the brackets
-x+25=35 make x the subject now;
-x=10
x= -10
Answer (-3,6)
#
f(x)=x ² +6x+15
=(x ² +6x+9)+6
=(x+3) ²+6
the vertex:(-3,6)