If a-b = 5, ab = 14, find the value of a + b

If a = 2, b = – 2, find the value of: a^2 + ab + b^2

If a = 2 and b = 3, find the value of (i) a + b (ii) a^(2) + ab (iii) ab - a^(2) (iv) 2a - 3b (v) 5a^(2) - 2ab (vi) a^(3) - b^(3)

If a + b = 9 and ab = 10, find the value of a^2+b^2.

If a^2 + b^2 = 53 and ab = 14, then find the value of a +b

If a-b=5 and ab=12, find the value of a^(3)+b^(2)

If a-b=4 and ab=21, find the value of a^(3)-b^(3)