Answer:
They sold 38 phone cases.
Step-by-step explanation:
The equation I used to solve is
The equation x² - 8x = 16 will equal to (x - 4)² = 32 so option (C) will be correct.
<h3> What is an expression?</h3>
An expression is a mathematical proof of the equality of two mathematical expressions.
Expressions are collections of variables, numbers, addition, subtraction, multiplication, and division.
A statement expressing the equality of two mathematical expressions is known as an equation.
Given,
x² - 8x = 16
x² - 8x - 16 = 0
Add and subtract 16 to the left-hand side
(x² - 8x +16) - 16 - 16 = 0
(x - 4)² - 32 = 0
(x - 4)² = 32
Hence the expression (x - 4)² = 32 will equal to x² - 8x = 16 .
To learn more about expression
brainly.com/question/14083225
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Answer:
b
Step-by-step explanation:
7 times 7 = 49 minus 3 = 46
