Matematyka

Zadania w załączniku. Proszę również o obliczenia. Z góry dzięki :)

Odpowiedź

karolina15a

x-2.........6x²+2x ______ . ________ 4x²........x²+x-6 Δ=b²-4ac Δ=1-4*(-6) Δ=1+24 Δ=25 x₁=(-b-√Δ):2 x₁=(-1-5):2 x₁=-3 x₁=(-b+√Δ):2 x₁=(-1+5):2 x₁=2 x-2.........6x²+2x ______ . ________ 4x²........(x+3)(x-2) D=R-{0,-3,2} x-2.........6x²+2x....x-2.....2x(3x+1).....(3x+1).....3x+1 ______ . ________=_____.__________=________=______ 4x²........(x+3)(x-2).. 4x²..(x+3)(x-2)....2x(x+3)....2x²+6x x²-3x+2.......x-1 __________.-_____ (x-1)(2x+1)...2x+1 D=R-{1-½) Δ=b²-4ac Δ=(-3)²-4*2 Δ=9-8 Δ=1 x₁=(-b-√Δ):2 x₁=(3-1):2 x₁=-1 x₁=(-b+√Δ):2 x₁=(3+1):2 x₁=2 x²-3x+2.......x-1.....(2x+1)(x²-3x+2)...(x-1)(2x+1)(x-1) __________.-_____=_________________-_________________= (x-1)(2x+1)...2x+1...(x-1)(2x+1)(2x+1)...(x-1)(2x+1)(2x+1) ...2x³-6x²+4x+x²-3x+2...(2x²+x-2x-1)(x-1) =___________________-________________= (2x²+x-2x-1)(2x+1)......(2x²+x-2x-1)(2x+1) 2x³-5x²+x+2...................2x³+x²-2x²-x-2x²-x+2x+1 =_______________________-_______________________= 4x³+2x²-4x²-2x+2x²+x-2x-1..4x³+2x²-4x²-2x+2x²+x-2x-1 2x³-5x²+x+2....2x³-3x²+1.. -8x²+x+1 =____________-_________=___________ 4x³-3x-1........4x³-3x-1........4x³-3x-1

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Matematyka