3x2y=3x x^2y^2=130 Take the value of x in terms of y from frst eq x=32y/3 Put this value in eq 2 After solving it will be 13y^2 12y=1161 Solve it by the formulay=b (√b^2–4ac)/2a Value of y will be 9 and 99 Put the value in eq 1 3x2y=3 3x18=3 x=7(x – y) 3 = x 3 – y 3 – 3 X x X y (x – y) we get, x = 1, y = 4a ∴ (1 – 4a) 3 = 1 – 64a 3 – 12a 48a 2 ∴ (1 – 4a) is a factor of the above given sum (9) Verify (i) x 3 y 3 = (x y) (x 2 − xy y 2) (ii) x 3 – y 3 = (x − y) (x 2 xy y 2) using some nonzero positive integers and check by actual multiplication1) Factor by grouping x^3 y^3 x^2y
How Do You Factor X 3 8x 2 19x 12 Socratic
