a + b, -a+b, a-b, -a- b
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We will find this product using the formula: (a-b)(a+b)=a2- b2 Here a=300 and b=3. Then we get: (300-3) × (300+3) =3002 - 32 = 90000-9 = 89991. Therefore, 297 × 303 = 89991. Example 3: Find the roots of the quadratic equation x2+5x+6=0 using algebra formulas for quadratic equations.
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a+b,-a+b,a-b,-a-b
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