What is the sum? 3x
X - 4
X-3
+
2x
7x2 + 7 x + 12
2X(X - 4)
6x4 - 7x + 12
2 x(x - 4)
7x2 - 7x + 12
2 x(x - 4)
6x4 + 7 x + 12
2X(X - 4)

What is the size of the matrix resulting from

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r