<span>
</span>
You can use (a+b)2 = a2+2ab+b2.
(2x - 3)2 = (2x)2 + 2(2x)(-3) + (-3)2 = 4x2 - 12x + 9
Or you can use FOIL.
(2x - 3)2 = (2x - 3)(2x - 3) = (2x)2 + (2x)(-3) + (-3)(2x) + (-3)2 = 4x2 - 12x + 9
hope I could be helpful
(5+4+6-2)×2×2-1
(9-4)×2×2-1
5×2×2--1
10×2-1
20-1
19
Answer:
135
Step-by-step explanation: 9x15=135
Answer:
The measure of angle s is 75 degrees
Step-by-step explanation:
7x+40+8x+25+5x+15=180
20x+80=180
20x=100
x=5
7*5+40=75
Answer:
we have 3 things here. 30% out of 100% of the 450 phones
In order to find the missing percent we multiply the 450 by 100 and divide its product by 30
The answer is 1500
Step-by-step explanation:
