brucedog10 brucedog10

09-04-2020
Mathematics

contestada

is 6 a solution to the quotation 2x squared + 8 equals 80

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surjithayer10 surjithayer10

09-04-2020

Answer:

Step-by-step explanation:

2x²+8=80

2x²=80-8=72

x²=72/2=36

x=±√36

x=±6

so x=6 is one solution other is x=-6

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joelvargas joelvargas

09-04-2020

No because 2(6) is 12 and that squared is 144

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