Will mark brainliest, rate and thank pls answer. I don't need an explanation just an answer 3t+8(2t-6)=12+14t 2v+18=16-4(v+7) 4x
1 answer:
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Answer: 49+64i
Step-by-step explanation:
Concept to know:
i=√-1
i²=-1
i³=-i
=1
-------------------------------------
(-5+8i)(3-8i)
=-15+40i+24i-64i²
=-15+64i-64i²
=-15+64i+64 (remember, i²=-1)
=49+64i
Hope this helps!! :)
Please let me know if you have any question or need further explanation
Answer:
D = 0; one real root
Step-by-step explanation:
Discriminant Formula:
First, arrange the expression or equation in ax^2+bx+c = 0.
Add both sides by 9.
Compare the coefficients so we can substitute in the formula.
- a = 1
- b = 6
- c = 9
Substitute a = 1, b = 6 and c = 9 in the formula.
Since D = 0, the type of solution is one real root.