Answer: Find the attached
Step-by-step explanation:
The nth term of a number sequence is n2 - 2
1 answer:
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Answer:
The solution is the point (-2,1)
Step-by-step explanation:
we have
----> equation A
----> equation B
Solve the system of equations by graphing
Remember that the solution of the system is the intersection point both lines
using a graphing tool
The solution is the point (-2,1)
see the attached figure
<em>Correct expression: </em>
Answer:
x = 4
x = -4
x = 7i or
x = -7i or
Step-by-step explanation:
We do factorization of x^2 - 16
(x^2-16) = (x+4)(x-4)
(x+4)(x-4)(x^2+49) = 0
We require that any term in the multiplication to be zero to fulfil the requirement
so:
if x + 4 = 0 then (x+4)(x-4)(x^2+49) = 0
x = -4
if x - 4 = 0 then (x+4)(x-4)(x^2+49) = 0
x = 4
if (x^2+49) = 0 then (x+4)(x-4)(x^2+49) = 0
x^2 = -49
we have two roots:
If your course has already worked with complex number and the root of -1 then:
7i and -7i are solution as well
because 7i will be:
and the same reasoning for -7i: