Question

Simplify (2-3i) -(6+4i)
a) -24-10i
b) 4+7i
c) -4-7i
d) -4+7i

Answer 1

2 - 6 - 3i - 4i
simplify like terms

Answer 2

can u finish this?

Answer 3

2 - 6 = ?

Answer 4

-4?

Answer 5

right

and -3i - 4i ?

Answer 6

not sure? either +7 or -7

Answer 7

well - don't forget the 'i'
-3i - 4i = -7i

Answer 8

So it's c?

Answer 9

yes

Answer 10

ok thanks

Answer 11

yw

Answer 12

Do you know how to do this one? Give the value of the discriminantof the equation 4x^-7x+3=0

a) 1
b)-128
c)0
d)128

Answer 13

you might be wondering why
-(6 + 4i) = -6 - 4i
think of it being -1(6 + 4i)
= -1*6 + -1* 4i
= -6 - 4i

Answer 14

i expect you mean 4x^2-7x+3=0

for ax^2 + bx + c = 0

discriminant = b^2 - 4ac

for your equation b = -7 , a = 4 and c = 3
plug these into the discriminant formula to get its value

Answer 15

= (-7)^2 - 4*4*3

Answer 16

So would it be a?

Answer 17

= 1


yes a

Answer 18

Factor 8x^2+14x+3
Show Work

Answer 19

sorry - gotta go