Factor out the GCF from each polynomial.
21x2 - 35x3 + 7x4
2242 - 35x3 +7x4=0

Write a corresponding real world problem to represent 2x - 125=400

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15