Calculate the value of binomial expressions — task. Mathematics CBSE, Class 7.

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Find out the value of binomial expressions if

$a =$ 35,

$b =$ 6 and

$c =$ 14.

I)

$a - 2b$

$=$ .

II)

$a^{2} b - 2 c$

$=$ .

III)

${6 c}^{2} - b^{2}$

$=$ .

$1$

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