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iwanttogotostanford
 one year ago
ALGEBRA II HELP: Which of the following is the conjugate of 10 − 3i?
iwanttogotostanford
 one year ago
ALGEBRA II HELP: Which of the following is the conjugate of 10 − 3i?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0change the sign in front of the imaginary part to find the conjugate

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(a + bi and (a  bi) are conjugates

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It would be 10+3i For example Conjugates: 32i, 3+2i

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0remember part of the general quadratic formula \[b \pm \sqrt{b^2  4ac}\] so if you think about \[3 \pm \sqrt{4} = 3 \pm 2i\] so the integer doesn't change its just the sign of the imaginary part

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0its also like the difference of 2 squares how do you get a 2 term quadratic (a b)(a +b) = a^2  b^2

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.1sorry, my wifi went out for awhile @campbell_st @twistnflip @peachpi

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.1so i would want to do the opposite for this one?

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.1what is the first step?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes the conjugates are easy. just switch the sign from positive to negative or vice versa. Here the conjugate is 10+3i

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.1so it would be 13i?

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.1wow I'm being stupid

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Nope do you have answer choices. It wouldn't be 13i because you can't add the two terms because one has a variable and the other does not lol

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The answer is 10 + 3i < Final answer

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.1i get it the question was just asking for the conjugate so its 10+3i

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.1my answer choices are

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.110 + 3i 10 − 3i 3 + 10i 3 − 10i

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.1thanks for helping me better understand, everyone!

iwanttogotostanford
 one year ago
Best ResponseYou've already chosen the best response.1yep, makes perfect sense
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