Felix was asked whether the following equation is an identity:
(X^2+1)^2 = (x^2-1)^2+(2x)^2

Felix started that the equation is a true identity.

Is Felix correct? If not, in which step did he make a mistake?

Plz hurry (will mark Brainliest)

Find the value of x for which abcd must be a parallelogram -9-6x x-30

The customer price index(cpi), which measures the cost of a typical package of customer goods, was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely. use data points to find such a line and then estimate the requested quantities

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.