Answer:
x = ± 10
Step-by-step explanation:
8x² - 7 = 793 ( add 7 to both sides )
8x² = 800 ( divide both sides by 8 )
x² = 100 ( take square root of both sides )
x = ± [tex]\sqrt{100} [/tex] = ± 10
Answer:
[tex] {8x}^{2} - 7 = 793 \\ {8x}^{2} = 793 + 7 \\ {8x}^{2} = 800 \\ {x}^{2} = 100 \\ x = 10[/tex]
