225x²+4=0
225x²=0-4
225x²=-4
x²=-4/225
x=±√-4/225
step-by-step explanation:
the true statements are:
r = set of real numbers
n = set of natural numbers, 1,2,
w = n u{0} = {0,1,}
graph them on a graphing calculator, press 2nd trace. select intersect. hit enter until it says answer. ti 84 works best