13440
4203 = 420 x 420 x 420 = 74088000
21x+452 = 32-84x 21x+84x = 32-452 105x = -420 x = -4
Solution Given x+160=420 or,x=420-160 Hence,x=260
297 x 420 x 2 = 0 (297 x 420) = 124740 (124740) x 2 = 249480
420 = 22 x 3 x 5 x 7
Equation: x^2+x=420 x^2+x-420=0 Using the quadratic formula, x=(-1+sqrt(1+4*420))/2 x=(-1-sqrt(1+4*420))/2 x=20 or -21
420 = 2 * 2 * 3 * 5 * 72 x 2 x 3 x 5 x 7 = 420
420 = 2 x 2 x 3 x 5 x 7
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2 x 2 x 3 x 5 x 7 = 420
2 x 2 x 3 x 5 x 7 = 420
You can write a simple equation: x + (x+1) = 420, where x is the first number. Alternatively, you can make x the second number and write x + (x - 1) = 420. Using the first one, x + x + 1 = 420, so 2x + 1 = 420. 2x = 419 (subtract 1), so x = 209.5. You can check this answer: 209.5 + 210.5 = 420.