Seudónimo
Seudónimo
01-10-2015
Mathematics
contestada
Simplify the expression (4x - 3)(x + 5).
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Аноним
Аноним
01-10-2015
Wait I think it's 9x-3.. Sorry...
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faizu
faizu
01-10-2015
=>(4x - 3) (x + 5) =>(4x × x )+( 4x × 5) - (3 × x ) -( 3 × 5) =>4x^2 + 20x -3x - 15 =>4x^2 + 17x -15 Hope it helps!!!
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X=2 X=5 X=2, x=5 No solution
