Solution - Power equations
Step by Step Solution
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "^-2" was replaced by "^(-2)".
(2): "0.078" was replaced by "(078/1000)". 2 more similar replacement(s)
Step 1 :
1.1 10 = 2•5
(10)3 = (2•5)3 = 23 • 53
Equation at the end of step 1 :
59 78
(——•(10-2))-(————•(23•53))
10 1000
Step 2 :
39
Simplify ———
500
Equation at the end of step 2 :
59 39
(—— • (10-2)) - (——— • (23•53))
10 500
Step 3 :
Dividing exponents :
3.1 23 divided by 22 = 2(3 - 2) = 21 = 2
Raising to a Power :
3.2 Canceling out 53 as it appears on both sides of the fraction line
Equation at the end of step 3 :
59
(—— • (10-2)) - 78
10
Step 4 :
4.1 10 = 2•5
(10)-2 = (2•5)(-2) = (2)(-2) • (5)(-2)
Equation at the end of step 4 :
59
(—— • ((2)(-2)•(5)(-2))) - 78
10
Step 5 :
59
Simplify ——
10
Equation at the end of step 5 :
59
(—— • ((2)(-2)•(5)(-2))) - 78
10
Step 6 :
Multiplying exponents :
6.1 21 multiplied by 22 = 2(1 + 2) = 23
Multiplying exponents :
6.2 51 multiplied by 52 = 5(1 + 2) = 53
Equation at the end of step 6 :
59
———— - 78
1000
Step 7 :
Rewriting the whole as an Equivalent Fraction :
7.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 1000 as the denominator :
78 78 • 1000
78 = —— = —————————
1 1000
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
7.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
59 - (78 • 1000) -77941
———————————————— = ——————
1000 1000
Final result :
-77941
—————— = -77.94100
1000
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