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Vera_Pavlovna [14]
3 years ago
12

Solve each equation by factoring. 5a^2-2a-47=0

Mathematics
1 answer:
sergey [27]3 years ago
4 0

Answer:

a = -2.872 and 3.272

Step-by-step explanation:

Given the equation 5a^2-2a-47=0

Using the general formula;

a = 2±√2²-4(5)(-47)/2(5)

a = 2±√4+940/10

a = 2±√944/10

a =  2±30.72/10

a = 2-30.72/10 and 2+30.72/10

a = -28.72/10 and 32.72/10

a = -2.872 and 3.272

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