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lbvjy [14]
3 years ago
13

What number when multiplied by itself is 23 greater than the preceding number when it is multiplied by itself?

Mathematics
2 answers:
just olya [345]3 years ago
8 0
X²=23+(x-1)²
expand
x²=23+x²-2x+1
x²=x²-2x+24
minus x² both sides
0=-2x+24
add 2x both sides
2x=24
divide by 2
x=12

the number is 12
Tanzania [10]3 years ago
6 0
12.
12^2 = 144
11^2 = 121
144 - 121 = 23
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