Answer:
Step-by-step explanation:
Since you multiply 3 by itself 3 times, that becomes 
and since you multiply 4 by itself 3 times, that becomes 
.
The final product is .
Answer:
0
Step-by-step explanation:
x and x are same terms.
<span>5*(-2/3+3x)
= 15x - 10/3
hope it helps</span>
Answer: a²+b² = -99/2
Step-by-step explanation:
Since we are given two equations, this equations will be solved simultaneously to get a² and b²
a³ - 3ab² = 47 ... 1
b³ - 3a² b = 52... 2
From 1, a(a² - 3b²) = 47...3
From 2, b(b² - 3a²) = 52... 4
Adding 3 and 4, we have;
a²+b²-3b²-3a² = 99 (note that a and b will no longer be part of the equations as they have been factored out)
a²+b²-(3b²+3a²) = 99
(a²+b²) -3(b²+a²)= 99
Taking the difference we have
- 2(a²+b²) = 99
a²+b² = -99/2
