a2 - 6a + 9 = a2 - 3a - 3a + 9 = a(a - 3) - 3(a - 3) = (a - 3)*(a - 3) = (a - 3)2
5a3-45a=-2a2+18 5a(a2-9)=-2(a2-9) 5a=-2 a=-2/5
144 Formula: c= (a2)+(ab)
* a2 + b2 = c2 * a = 3 * b = 8 * (3)2 + (8)2 = c2 * 9 + 64 = c2 * 73 = c2 * c = √73
2/9+4/9=6/9, which equals 2/3
15-3 times 2 equals 15-6 equals 9.
Yes, it is 9=3^2 but also equals -3^2
5A2 + 3 = 48 Therefore, 5A2 = 45 Therefore, A2 = 45/5 A = sqrt(9) A = 3
2.3 repeating as a fraction = 21/9 a1= 0.3 a2 = 0.03 r = a2/a1 = 0.03/0.3 = 0.1 fraction: = (2 + a1/1-r) = (2 + 0.3/1- 0.1) = (2 + 0.3/0.9) * (10/10) = (2 + 3/9) = (18 + 3)/9 = 21/9
3 to the power of 2 is the same as saying 3x3, which equals 9. (The answer is 9.)
If that's 2/9 + 1/3, that's the same as 2/9 + 3/9, which equals 5/9
+9