Answer:
i think 9900
Step-by-step explanation:
225x20 = 4500
180x30 = 5400
5400+4500 = 9900
The term in parentheses is a perfect square trinomial that can be expressed as follows:
(x² - 12x + 27) → (x - 3)*(x - 9)
Answer:
(2) <span>(x - 3)*(x - 9)
</span>For better understanding, follow the example and the annex:
The square of the difference of two terms
Following the criteria of the previous item, we have: (a-b)² = (a-b).(a-b)
Where a is the first term and b is the second.
When we develop this product, using the distributive property of multiplication.
<span>
</span>
The answer is the 3 one ok
I hope this helps you
11) 39+93+?'=180 ?'= 48
?+70= 48+62
?=110-70 ?=40
13) 50+55=?+80
?= 25
15) 30+60+?'=180 ?'=90
20+?=60+?'
20+?=60+90
?= 130