Question

(2x*2+5)(2x*2+3) solve using identity
Please fast is is urgent ​

Answer 1

Answer:

( 2x + 3 ) ( 2x - 5 )

( 2x + 3 ) ( 2x - 5 )____________________________

( 2x + 3 ) ( 2x - 5 )____________________________USING IDENTITY :

( 2x + 3 ) ( 2x - 5 )____________________________USING IDENTITY :( x + a ) ( x + b )

( 2x + 3 ) ( 2x - 5 )____________________________USING IDENTITY :( x + a ) ( x + b )=> x² + x ( a + b ) + ab

( 2x + 3 ) ( 2x - 5 )____________________________USING IDENTITY :( x + a ) ( x + b )=> x² + x ( a + b ) + ab_____________________________

( 2x + 3 ) ( 2x - 5 )____________________________USING IDENTITY :( x + a ) ( x + b )=> x² + x ( a + b ) + ab_____________________________SOLUTION :

( 2x + 3 ) ( 2x - 5 )____________________________USING IDENTITY :( x + a ) ( x + b )=> x² + x ( a + b ) + ab_____________________________SOLUTION :=> ( 2x )² + 2x ( 3 - 5 ) - ( 3 ) ( 5 )

( 2x + 3 ) ( 2x - 5 )____________________________USING IDENTITY :( x + a ) ( x + b )=> x² + x ( a + b ) + ab_____________________________SOLUTION :=> ( 2x )² + 2x ( 3 - 5 ) - ( 3 ) ( 5 )=> 4x² + 2x ( - 2 ) - 15

( 2x + 3 ) ( 2x - 5 )____________________________USING IDENTITY :( x + a ) ( x + b )=> x² + x ( a + b ) + ab_____________________________SOLUTION :=> ( 2x )² + 2x ( 3 - 5 ) - ( 3 ) ( 5 )=> 4x² + 2x ( - 2 ) - 15=> 4x² - 4x - 15 ANS

( 2x + 3 ) ( 2x - 5 )____________________________USING IDENTITY :( x + a ) ( x + b )=> x² + x ( a + b ) + ab_____________________________SOLUTION :=> ( 2x )² + 2x ( 3 - 5 ) - ( 3 ) ( 5 )=> 4x² + 2x ( - 2 ) - 15=> 4x² - 4x - 15 ANS_____________________________

Answer 2

$= (2 {x}^{2} + 5)(2 {x}^{2} + 3) \\ \\ = 2 {x}^{2} (2 {x}^{2} + 3) + 5 (2 {x}^{2} + 3) \\ \\ = 4 {x}^{4} + 6 {x}^{2} + 10 {x}^{2} + 15 \\ \\ = 4 {x}^{4} + 16 {x}^{2} + 15$