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Q: What is 2 + 2 x 5 - 3?

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18000

1800

2 x 2 x 2 = 8 2 x 3 x 5 = 30 3 x 3 x 5 = 45 2 x 2 x 2 x 3 x 3 x 5 = 360, the LCM

3,000 = 2 x 2 x 2 x 3 x 5 x 5 x 5 OR 2^3 x 3 x 5^3

The prime factors of 120 are 2 x 2 x 2 x 3 x 5 or 2^3 x 3 x 52 x 2 x 2 x 3 x 52 x 2 x 2 x 3 x 5 = 1202 x 2 x 2 x 3 x 5 = 120

2 x 5 x 5 x 5 = 250 2 x 2 x 3 x 3 x 3 x 3 = 324 2 x 2 x 2 x 3 x 3 = 72 2 x 2 x 3 x 13 = 156 3 x 37 = 111 2 x 2 x 2 x 2 x 2 x 2 x 2 = 128 5 x 5 x 5 x 5 = 625 2 x 5 x 5 x 11 = 550 3 x 3 x 3 x 3 x 5 = 405 3 x 3 x 3 x 3 x 3 = 243 2 x 2 x 5 x 5 x 5 = 500 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 512

2 x 3 x 3 x 3 x 5 x 52 x 2 x 2 x 3 x 5 x 5Select the common factors.2 x 3 x 5 x 5 = 150, the GCF

1,800 = 2 x 2 x 2 x 3 x 3 x 5 x 52 x 2 x 2 x 3 x 3 x 5 x 5 = 1800

2 x 180 3 x 120 4 x 90 5 x 72 6 x 60 8 x 45 9 x 40 10 x 36 12 x 30 15 x 24 18 x 20 2 x 2 x 90 2 x 3 x 60 2 x 5 x 36 3 x 3 x 40 3 x 5 x 24 2 x 2 x 2 x 45 2 x 2 x 3 x 30 2 x 2 x 5 x 18 2 x 3 x 3 x 20 2 x 3 x 5 x 12 3 x 3 x 5 x 8 2 x 2 x 2 x 3 x 15 2 x 2 x 3 x 3 x 10 2 x 2 x 2 x 5 x 9 2 x 2 x 3 x 5 x 6 2 x 3 x 3 x 4 x 5 2 x 2 x 2 x 3 x 3 x 5

2 x 3 x 5^2

5x^3 + 15 x^2 - 125x - 375 = 5(x^3 + 3 x^2 - 25x - 75) = 5[(x^3 + 3 x^2) - (25x + 75)] = 5[x^2(x + 3) - 25(x + 3)] = 5[(x + 3)(x^2 - 25)] = 5(x + 3)(x + 5)(x -5)

2 x 2 x 2 x 3 = 242 x 3 x 3 x 5 = 902 x 3 = 6, the GCF

3^2 x 5^2 = 3 x 3 x 5 x 5 = 9 x 25 = 225

240 = 2 x 2 x 2 x 2 x 3 x 5 900 = 2 x 2 x 3 x 3 x 5 x 5 Max is four 2's, two 3's and two 5's So LCM is 2 x 2 x 2 x 2 x 3 x 3 x 5 x 5 = 3600

The prime factorization of 270 is2 x 3 x 3 x 3 x 5 or 2 x 3^3 x 52 x 3 x 3 x 3 x 5 = 270

A question of prime factors... The answer is 2 x 2 x 3 x 5 x 7 = 420 2 x 2 x 3 x 5 x 7 gives us a factor of 2... 2 x 2 x 3 x 5 x 7 and of 3... 2 x 2 x 3 x 5 x 7 and of 4... 2 x 2 x 3 x 5 x 7 and of 5... 2 x 2 x 3 x 5 x 7 and of 6... 2 x 2 x 3 x 5 x 7 and of 7.

Primes: 2, 2, 2, 2, 3, 5, 5 Others are any combination of the primes, i.e. 2 x 2 = 4 2 x 3 = 6 2 x 5 = 10 2 x 2 x 3 = 12 3 x 5 = 15 2 x 2 x 2 x 2 = 16 2 x 2 x 5 = 20 2 x 2 x 2 x 3 = 24 5 x 5 = 25 2 x 3 x 5 = 30 2 x 2 x 2 x 5 = 40 2 x 2 x 2 x 2 x 3 = 48 2 x 5 x 5 = 50 2 x 2 x 3 x 5 = 60 3 x 5 x 5 = 75 2 x 2 x 2 x 2 x 5 = 80 2 x 2 x 5 x 5 = 100 2 x 2 x 2 x 3 x 5 = 120 2 x 3 x 5 x 5 = 150 2 x 2 x 2 x 5 x 5 = 200 2 x 2 x 2 x 2 x 3 x 5 = 240 2 x 2 x 3 x 5 x 5 = 300 2 x 2 x 2 x 2 x 5 x 5 = 400 2 x 2 x 2 x 3 x 5 x 5 = 600

2 x 2 x 3 x 3 x 3 x 5 x 5 x 5 x 5 x 5

2*2*3*5*5*52 x 2 x 3 x 5 x 5 x 5

2 x 2 x 3 x 3 x 5 = 180 2 x 2 x 2 x 5 x 5 = 200 2 x 2 x 2 x 3 x 3 x 5 = 360

2 x 2 x 2 x 3 = 24 2 x 3 x 3 x 5 = 90 2 x 2 x 5 x 5 = 100 2 x 2 x 2 x 3 x 3 x 5 x 5 = 1800, the LCM

The GCF of 360 and 4500 is 180. 2 x 2 x 2 x 3 x 3 x 5 = 360 2 x 2 x 3 x 3 x 5 x 5 x 5 = 4500 2 x 2 x 3 x 3 x 5 = 180, the GCF

2 x 2 x 2 x 3 x 3 x 5 because 2, 3 and 5 are prime numbers, factors of 360 and 2 x 2 x 2 x 3 x 3 x 5 equals 360.

A) 2 x 2 x 3 x 3 x 5 x 7

2 x 2 x 2 x 2 x 3 x 5 = 240 2 x 2 x 3 x 5 x 5 x 5 = 1500