No offense but this is really easy all you do is substitution
(2+3)= 5
Answer:
84 circular tiles are needed to make pattern number 20
4(20+1)
Step-by-step explanation:The number of circular tiles is 1 more than the pattern number on each side of the square.
circular tiles = 4(n +1)
<em>the missing term is 5</em>
- <em>Step-by-step explanation:</em>
<em>Hi there ! </em>
<em>12x² - 75 = </em>
<em>= 3(4x² - 25)</em>
<em><u>use formula</u></em><em> a² - b² = (a - b)(a + b)</em>
<em>= 3(2x - 5)(2x + 5)</em>
<em>= 3(2x + 5)(2x - 5) </em>
<em>the missing term is 5</em>
<em>Good luck !</em>
