Question

answer only 1 part with formula
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Answer 1

Answer:

given : - (x+8)(x-10)

Formula :- a^2-b^2

x^2 - 10^2

x - 100

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Answer 2

$\huge\mathfrak \orange{answer}$

$\huge\mathfrak \red{identity \: being \: used \: }$

★ ( x + a ) ( x + b )= x ² + x( a + b ) + ab

$\small\mathfrak \red \bigstar \orange{ \: lets \: apply \: the \: identity}$

( x + 4)( x + 10 ) = x ² + x(4+10) +40

x ² + 4x +10x +40

x ² + 14 x + 40

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