Using the discriminant for a quadratic equation the value of k works out as plus or minus 12.
Y = x2 + 4x + 11OK. That's very interesting.Is there a question ?
X=1/2
(2x + 1)(2x + 1) or (2x + 1)2 so x = -0.5
She isn't. 4x squared is 4 times (x squared). That is, 4 times (3 squared) = 4 times 9. If you want it to be the square of 4x (which would be the square of 4 times 3, ie, 12), you have to write it as (4x)squared.
8x squared
x = -½
y=xsquared-4x+2
The discriminant is 121.
Y = x2 + 4x + 11OK. That's very interesting.Is there a question ?
Y = x squared -4x plus 3 is an equation of a function. It is neither called a domain nor a range.
X=1/2
It equals 53X- a number is squared when it is multiplied by itself, so 7X by 7X = 49X. 2X by 2X =4X, so 49X + 4X is 53X.
(2x + 1)(2x + 1) or (2x + 1)2 so x = -0.5
She isn't. 4x squared is 4 times (x squared). That is, 4 times (3 squared) = 4 times 9. If you want it to be the square of 4x (which would be the square of 4 times 3, ie, 12), you have to write it as (4x)squared.
The value of x is 2
27
It is: 4x squared