Write by what rule you know the triangles are congruent, or write CNBD for "Cannot be determined." Segments and angles are congr
uent only if marked congruent.
1 answer:
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Answer:
x = 7 ±
Step-by-step explanation:
Given
4(x - 7)² - 48 = 12 ( add 48 to both sides )
4(x - 7)² = 60 ( divide both sides by 4 )
(x - 7)² = 15 ( take the square root of both sides )
x - 7 = ± ( add 7 to both sides )
x = 7 ±