Pressure is defined as the following Pressure = force / area. So what this means is pressure is how much force is exerted over a area of given size. For examle a concrete slab is on the floor this slab has a width of 2m and a length of 2 m its area is 2 x 2 which gives 2m Squared. Its force it exerts is 1000 newtons ok what the hell does this mean? if you place this in the formula you will get pressure = 1000/4 Pressure = 250 newtons per square metre. I hope this answers you question on what pressure is.
x2 - (2x)2 = x2 - 4x2 = -3x2 x2 - 2x2 = -x2
If 2x2 = 250 then x2 = 250/2 = 125 So x = sqrt(125) = 5*sqrt(5) = +/- 5*2.236 = + or - 11.180
(X2) (X2) = X4 x squared multiplied by x squared is x raised to the 4th power.
x2 + x2 = 2x2 2x^2
x2+y2
x^3 - 121x
7
X2 A number to the second power is squared.
2x2 + x2 = 3x2
x2 + x2 = 48 2x2 = 48 x2 = 24 x = √24 x = 2√6
x2
A squared number has an exponent of 2. So x squared = x2