Math, asked by gautamkumarr9282, 2 months ago

if a to the power 2 + 1/a to the power 2 = 7. find the value of a to the power 2 - 1/a to the power 2

Answers

Answered by alansoashish555
0

Answer:

Step-by-step explanation:

3x

2

−23x+40=0

3x

2

−15x−8x+40=0, split the middle term

(3x

2

−15x)+(−8x+40) group the terms

3x(x−5)−8(x−5)=0

(x−5)(3x−8)=0, factor

x−5=0 or 3x−8=0, zero product property

x=5 or x=

3

8

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