You go the grocery store and buy 7 bags of gummy bears and 3 chocolate bars. Your total was $22. Next time you go, you buy 3 bag
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
Given
x - = 9 ← square both sides
(x - )² = 9²
x² - 2 + = 81 ( add 2 to both sides )
x² + = 83
Now
(x + )² = x² +
+ 2, thus
x² + = 83 + 2 = 85
(x + )²= 85 ( take the square root of both sides)
x + =