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Por favor necesito ayuda[tex]28 : (3 ^ {2} - 5) + 2?

Por favor necesito ayuda[tex]28 : (3 ^ {2} - 5) + 2. \ sqrt{64} = 2, \ sqrt{25} - \ sqrt{9} + \ sqrt{16} + (20 + 4) : 3 = 3, 24 - 6. 4 + (5 - 4). 5 ^ {2} - \ sqrt{49} = 4, 5 ^ {3} - ^ {3} \ sqrt{125} + (7 - 2) ^ {2} - (6 + 39) ^ {2} = [ / tex].

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<img src="https://tex.z-dn.net/?f=28%3A%284%29%2B2%288%29%3D7%2B16%3D23" /> <img src="https://tex.z-dn.net/?f=2%2C5-3%2B4%2B24%3A3%20%5C%5C%20%0A2%2C5-3%2B4%2B8%20%3D%2014%2C5-3%3D11%2C5" /> <img src="https://tex.z-dn.net/?f=3%2C24-6%2C4%2B%281%29.

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<img src="https://tex.z-dn.net/?f=28%3A%284%29%2B2%288%29%3D7%2B16%3D23" />

<img src="https://tex.z-dn.net/?f=2%2C5-3%2B4%2B24%3A3%20%5C%5C%20%0A2%2C5-3%2B4%2B8%20%3D%2014%2C5-3%3D11%2C5" />

<img src="https://tex.z-dn.net/?f=3%2C24-6%2C4%2B%281%29.25-7%3D28%2C24-13%2C4%3D14%2C84" />

91, 125 - 5 + 25 - 2025 = - 1903, 875.