What are the solutions of the equation x4 + 6x2 + 5 = 0? Use u substitution to solve. x = i and x = iStartRoot 5 EndRoot
x = plus-or-minus i and x = plus-or-minus iStartRoot 5 EndRoot
x = plus-or-minus StartRoot negative 1 EndRoot and x = plus-or-minus StartRoot negative 5 EndRoot
x = plus-or-minus Negative 1 and x = plus-or-minus -StartRoot 5 EndRoot

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

plz yuo

step-by-step explanation:

inverse operation of addition

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus