Question

Write the zeros of 4x square - 7

Answer 1

Hi,

Here is your answer !
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Given Equation : 4x² - 7

To find zero we need to put

4x² - 7 = 0

=> 4x² = 7

=> x² = 7/4

=> x = √(7/4)

=> x = ± √7 / 2

Hence,

Zeros of 4x² - 7 are √7/2 and -√7/2

Answer 2

Hey!

4x² - 7 = 0

( 2x )² - ( √7 )² = 0

[ Identity :- a² - b² = ( a - b ) ( a + b ) ]

( 2x - √7 ) ( 2x + √7 ) = 0

=> ( 2x - √7 ) = 0

x = √7 /2

=> ( 2x + √7 ) = 0

x = ( -√7 / 2 )

So, the zeros are :- √7/2 and -√7/2