Messidapro2131 Messidapro2131

06-10-2018
Mathematics

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Factor 81x²-25. Remember there is no middle term. This is a sum and difference of 2 squares.

Respuesta :

06-10-2018

Hey there!!

Basic formula :

... a² - b² = ( a + b ) ( a - b )

Equation given :

... 81x² - 25

... ( 9x )² - ( 5 )²

... ( 9x + 5 ) ( 9x - 5 )

Hope it helps!!

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