Question

5) Express 0.6 +0.7 +0.47 in the form p/q where p and q are integers and
q=0.
6) If both (x - 2) and (x - 5) are factors of px2 + 5x +r, show that
p = r.
7) Factorise: x2 + 3V3x + 6
8) Prove that (a + b + c)3 - a3 - b3 - c3 = 3(a + b)(b + c)(c + a)
9) Factorise : 2x3 - 3x2 - 17x + 30
8) Factorise : 8a3 - 63 - 64c3 - 24abc​

Answer 1

Answer:

5) 6/10 + 7/10 + 47/100 = 177/100

Answer 2

Answer:

5) 6/10+7/10+47/100=64/10000= 0.0064