3 years ago

Please answer with formula. i will mark you brainlist.

Mathematics

1 answer:

Serhud [2]3 years ago

4 0

Answer:

$\frac{-7}{8}$

Step-by-step explanation:

Because $\frac{-7}{8}=-0.875 < 0$

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How can I solve this?

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3 years ago

(6+√-64)(3-√-16) Multiply. This is urgent, please explain this to me!

romanna [79]

Answer:

Step-by-step explanation:

$\sqrt{-64}$ and $\sqrt{-16}$ can be expressed in complex form, with $\sqrt{-1}$ = i

$\sqrt{-64}$ = $\sqrt{64(-1)}$ = $\sqrt{64}$ × $\sqrt{-1}$ = 8i

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the factors can then be expressed as

(6 + 8i)(3 - 4i) ← expand using FOIL

= 18 - 24i + 24i - 32i² [ i² = ( $\sqrt{-1}$ )² = - 1 ]

= 18 - 24i + 24i + 32 ← collect like terms

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2 years ago