Answer:
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Step-by-step explanation:
<em><u>please</u></em><em><u> </u></em><em><u>click</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>heart</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>rate</u></em><em><u> </u></em><em><u>excellent</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>brainleist</u></em><em><u> </u></em>
<em><u>please</u></em><em><u>☻</u></em><em><u>❤</u></em><em><u>☺️</u></em><em><u>☺️</u></em><em><u>❤</u></em><em><u>☻</u></em>
<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:
Well 8cm squared is 48 cm then you add the 6cm and get 54cm
Answer:
Factor using the perfect square rule.
(
5
x
+
9
)
^2
HOPE THIS HELPS!!!
Step-by-step explanation:
OPEN PERENTHESIS FIVE X PLUS NINE CLOSED PERENTHESIS TO THE SECOND POWER
200.86
all that is needed to be done is you find 10^3 and then divide 400 buy that and you'll end up with 200.86 (rounded) the answer not rounded is
200.8553692319