Question

If x = 2 and y = -1 find x³ - 8y³​

Answer 1

Step-by-step explanation:

$x {}^{3} - 8y {}^{3} \\ = (2) {}^{3} - 8 \times ( - 1) {}^{3 } \\ = 8 + 8 \\ = 16$

Answer 2

Answer:

x=2

y=-1

x³-8y³

(2)³-8(-1)³

8+8=16

the answer is 16

and sorry guys for the last question as the question was given find the negative rational number so the answer will be -5/6