3 years ago

Find the following special products.

Mathematics

1 answer:

Anna [14]3 years ago

4 0

(4x-3y)^2(4x-3y)
=(16x^2-24xy+9y^2)(4x-3y)
=64x^3-96x^2y+36xy^2-48x^2y+72xy^2-27y^3
=64x^2-144x^2y+108xy^2-27y^3

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LEARNING TASK 1

umka21 [38]

Answer:

Please where are the boxes

3 0

3 years ago

Marina correctly simplified the expression <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B-4a%5E-%5E2b%5E4%7D%7B8a%5E-%5E6b%5E-%

Fantom [35]

$\bf \cfrac{-4a^{-2}b^4}{8a^{-6}b^{-3}}$

so, in short, without too much fuss, you simply move the variable from the bottom to the top, and the exponent sign must change, or the other way around, from the top to the bottom, and the exponent sign changes

so $\bf \cfrac{-4a^{-2}b^4}{8a^{-6}b^{-3}}\implies \cfrac{-4}{8}\cdot a^{-2}a^6b^4b^3\implies -\cfrac{1}{2}a^{-2+6}b^{4+3}\implies -\cfrac{1}{2}a^4b^7$