Question

-7d(d²f³)(-10d⁵f³)




QwQ


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Answer 1

Respuesta:

-7d(d²f³)(-10d⁵f³)

$-7d\left(d^2f^3\right)\left(-10d^5f^3\right)\\\\-7d\left(d^2f^3\right)\left(-10d^5f^3\right)\\\\=7dd^2f^3\cdot \:10d^5f^3\\\\=70dd^2f^3d^5f^3\\\\=70d^8f^3f^3\\\\=70d^8f^6$

(2X + 3y) (-4X + y)

$\left(2X+3y\right)\left(-4X+y\right)\\\\=2X\left(-4X\right)+2Xy+3y\left(-4X\right)+3yy\\\\=-2\cdot \:4XX+2Xy-3\cdot \:4Xy+3yy\\\\=-8X^2-10Xy+3y^2$