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Mathematics
Evelyn Frey
9 September, 01:47
If 3x + 8 = - 4, then
evaluate x3 + 5
+4
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2
)
Jasmin Ibarra
9 September, 02:21
0
-59
Step-by-step explanation:
x3 is meaningless; I assume you meant x^3.
If that's the case, then:
3x + 8 = - 4 is equivalent to 3x = - 12, so that x = - 4.
Then (-4) ^3 + 5 = - 64 + 5 = - 59
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Jamison Bowman
9 September, 05:27
0
-59
Step-by-step explanation:
the question can be solved by some simple mathematical steps.
If 3x + 8 = - 4
then, x3 + 5 = ?
from 3x + 8 = - 4
collect the like terms
3x = - 4 - 8
3x = - 12
divide both sides by 3
3x/3 = - 12/3
x = - 4
if x = - 4 then to find x3 + 5 will imply that we will insert the value of x = - 4 into the x3 + 5
-4 ³ + 5
-64 + 5
= - 59
therefore the value of x3 + 5 is solved to be - 59
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