To solve the quadratic by complete square method we proceed as follows:
x²-6x+7=0
this can be written as:
x²-6x=-7
but
c=(-b/2a)^2
c=(-(-6)/2)^2=9
next we add 9 on both sides of our expression to get:
x²-6x+9=-7+9
x²-6x+9=2
factoring out the LHS we get:
(x-3)(x-3)=2
(x-3)²=2
getting the square root of both sides we obtain:
x-3=+/-√2
hence:
x=3+/-√2
<span>The addition and substraction are inverse operation</span>
explanation:total=addition
area=base x height plus the width (area the amount beneath the surface).
equation:3cm both sides 3cm
answer: 3+3= 6cm .
Answer:
22x?
Step-by-step explanation:
is there more to this question? if not its just simple addition and then add "x" at the end
99,999,999 + (-4) is basically 99,999,999 - 4
99,999,999 - 4 = 99,999,995
