Work out

4 1/9 - 3 3/5

23/45

Step-by-step explanation:

First turn them into improper fractions

(Whole number × denominator = ANS + Numberator = ANS Numberator) The number for denominator will remain the same.

in order to take away, the denominators need to be the the same. whatever you do to the bottom, you would do to the top.

9 x 5 = 45 5 x 9 = 45

37 x 5 = 185. 18 x 9 = 162

The demoninators now doesn't need to change. Take away the numerators.

185-162=23

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

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answer