4 years ago

Rationalise the denominator. 2+square root of 2 divided by4 minus the square root of2

Mathematics

1 answer:

nasty-shy [4]4 years ago

7 0

Do you understand what I'm doing here or would you like an explanation?

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Step-by-step explanation:

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3 years ago

Write the quadratic equation whose roots are 4 and 5, and whose leading coefficient is 4.

Umnica [9.8K]

Answer:

Answer: 4x² - 9x + 20 

Step-by-step explanation:

• General quadratic equation:

${ \rm{ {x}^{2} - (sum \: of \: roots)x + (product \: of \: roots) }}$

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• product of roots → 4 × 5 = 20

• substitute:

${ \boxed{ \rm{4 {x}^{2} - 9x + 20 }}}$

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Step-by-step explanation:

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Answer:

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