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Complete the square on each of the following.
x2 -16x
Solution
Here's the number which we'll insert to the equation.
( -16 /2 ) = (-8)2 = 64
Notice that we put the minus sign here although it will always drop out after we square things. The cause for this will be clear in a second. Now let's complete the square.
x2 -16 x + 64 =( x - 8)2
Now, it is a quadratic hopefully that you can factor fairly rapidly. Though notice that this will always factor as x plus the blue number we calculated above i.e. in the parenthesis (in our case i.e. -8). This is the cause for leaving the minus sign. It ensures that we don't commit any mistakes in the factoring procedure.
Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x2+y2+16x-18y+145=25
which of the following cereals is the best buy?
#If the common factor is known how do you find what the entire equation be (ex: A varies directly with t^2; A=8 when t=2. What is the formula?)
We desire to look at the graph of quadratic function. The most general form of a quadratic function is, f (x ) = ax 2 + bx
f(x)=5x-3 g(x)=-2x^2-3 find f(-3 )and g(5)
9-4x, for x=5 what is the answer
7x to the 2 power y -9x to the 2 power y-2x to the 2 power y
7w+2=3w+94
9x-2y=3
(81x^2/256)^1/4
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