8a+2b * -2a + 5b (since there's an invisible -1, at least the 1 is) so the product of that is -16a^2 + 10b^2
Answer:
x=11 and y=8
Step-by-step explanation:
just took the test
Answer:
675
Step-by-step explanation:
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Answer: A) (-1, 0) to (1, 2)
<u>Step-by-step explanation:</u>
Complex numbers are written in the form of ai + b ; where "a" represents the x-coordinate and "b" represents the y-coordinate --> (a, b)
-i → -1i + 0 → (-1, 0)
2 + i → 1i + 2 → (1, 2)
Which graph connects those two coordinates? OPTION A
Answer: 
Step-by-step explanation:
1) Multiply the first equation by 3,and multiply the second equation by -5:
, 
2) Simplify:
, 
3) Add the equations to eliminate
: 
4) Divide both sides by
: 
5) Simplify: 
6) Substitute 4 for x in
: 
7) Simplify: 
8) Subtract
on both sides of the equation: 
9) Divide both sides by
: 
10) Simplify: 
11) Write point: 