Answer:
D) -4 (with imaginary roots ±2i)
Step-by-step explanation:
Since you cannot take the square root of a negative number to produce a real result, the only option that has two imaginary roots is D) -4, where the two imaginary roots are 2i and -2i.
Answer:
c = 3/2
Step-by-step explanation:
hello :
3(5-2x)=-4(cx+4)
-6x+15 = - 4 cx-16
-6x+4cx = -16-15 means 6x-4cx=-31
(6-4c ) x = 31
the equation have no solutions when : 6-4c = 0 (you have : 0x=31...false)
-4c=-6
c= -6/-4
c = 3/2
To find the reciprocal of a number or fraction, just flip the numerator and denominator. Whole numbers are always over 1.
2 =
The reciprocal of
or .5 (one-half)
The reciprocal of
Answer:
(9-6)+2
Step-by-step explanation:
use PeMDAS
15x³z + 30x² - 18yz - 9xyz² =
= 15x³z + 30x² - 9xyz² - 18yz =
= 15x²(xz + 2) - 9yz(xz + 2) =
= (15x² - 9yz)(xz + 2)
