(x + 10)² - 1
= (x² + 20x + 100) - 1
= x² + 20x + 99
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Given:

Sol:
Area of picture is:

If the cost $10 per square inch then price of 15 square inch is:

If the quadruple of dimension that mean:

So area is:

So price is:
subtract 3 from 23 and u will get 20 then divide 2 by 2 and 2 by 20
x= 10
Answer:
Quotient is 5
Remainder is 6
Step-by-step explanation: