Toán Lớp 8: Giúp em với ạ (2x-1/2)(4x^2+x+1)
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Toán Lớp 8: Giúp em với ạ (2x-1/2)(4x^2+x+1)
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Mong cho lời giải hay nhất ❤️⭐️
$\text{(2x-$\dfrac{1}{2}$)(4x²+x+1)}$
$\text{=8x³+2x²+2x-2x²-$\dfrac{1}{2}$x-$\dfrac{1}{2}$}$
$\text{=8x³+$\dfrac{3}{2}$x-$\dfrac{1}{2}$}$