Question

Please solve the 6 th question As easy and fast As possible Pls dont give answers like i dont know Pls answer only if u know Thanks The 6 th question pls

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

as we know (a-b)²+(a+b)²=2(a²+b²)

2{(3x)²+(5)²}=18x²-36x+10x-20+54

2(9x²+25)=18x²-26x+34

18x²+50=18x²-26x+34

26x=34-50

26x=-16

x=-16/26

x=-8/13

hope it will help you