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7x7= 49 49-9=40 The answer is 40.
10x4^5
196 98x2=196 49x2=98 7x7=49 2x2&7x7
The answer is 28.
7x7=49
40
4(10x4 + 3)(10x4 - 3)
it aint
5x8 10x4 20x2
49
The GCF is 10x4.
10x4
2x4