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The square root of junior high school mathematics
∵( 8; -8) Square = 64 ∴+64 = (8; -8 )

∵( 0.9; -0.9 squared) =0.8 1 ∴0.8 1 is (the square root of 0.9; -0.9) The arithmetic square root is (0.9)

calculate

(1) radical number 225= 15 (2)- radical number 0.0 1 =-0. 1 (3) radical number (-5) quadratic number = 5 (4) radical number12.

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