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Solve your math problems using our free math solver with step-by-step solutions. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more.Simplify (x-2) (x-7) (x − 2) (x − 7) ( x - 2) ( x - 7) Expand (x−2)(x− 7) ( x - 2) ( x - 7) using the FOIL Method. Tap for more steps... x⋅x+x⋅ −7−2x−2⋅−7 x ⋅ x + x ⋅ - 7 - 2 x - 2 ⋅ - 7. Simplify and combine like terms. Tap for more steps... x2 − 9x+14 x 2 - 9 x + 14. notary public near me Solution for Show that f(x) = x2 / (x7+ 1) takes on the value 0.4. In calculus, concavity is a descriptor of mathematics that tells about the shape of the graph. 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