Question

8x^2-7=793 solve by taking square roots

Answer 1

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 = ± $\sqrt{100}$ = ± 10

Answer 2

Answer:

${8x}^{2} - 7 = 793 \\ {8x}^{2} = 793 + 7 \\ {8x}^{2} = 800 \\ {x}^{2} = 100 \\ x = 10$