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KiRa [710]
3 years ago
11

If x = 5, find the value of a) x2 b) (x + 3)2

Mathematics
1 answer:
PtichkaEL [24]3 years ago
3 0

Answer: a) = 10

b) = 16

Step-by-step explanation:

a) as x = 5 so putting the value of x in given equation

5 multiplied by 2 is equal to 10

b) Putting value of x in given equation

= (5 + 3) 2

According to BODMAS solve the brackets first

= 8 x 2

= 16

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andreyandreev [35.5K]
Speed = Distance / Time

Distance = 5t^4 - 10t^2+6

Time = t+2

Now:

 5t^4 - 10t^2 + 6         | t+2
-5t^4 -10t^3                 5t^3 - 10t^2 + 10t - 20
 \\\\\ -10t^3-10t^2+6
       +10t^3+20t^2
        \\\\\\\ 10t^2+6
                -10t^2-20t
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<span>C. 5t^3-10t^2+10t-20+(46)/(t+2))</span>
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3 years ago
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