x2 - 4x - 96 = 0
(x - 12)(x + 8) = 0
x = 12, -8
Check it.
144 - 48 - 96 = 0
64 + 32 - 96 = 0
It checks.
x = -½
It is 16x squared plus 80x plus 100.Very complicated!
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
If the 64 has a minus sign, then the solution is x = +/-5 Simplifying gives 4x squared = 100 ie x squared = 25...
It is: 4x squared
4x times 4x equals 16x2.