Question

Answer these questions !!
pls answer to be marked brainliest!!
question 1 :- ( 2x^2 - 3x)^2 + (5xy + 2x^2)^2 - 10xy^3
question 2:- (a^2+ b^2) (a^2-b^2)
question 3 :- 5(a+3y)^2 - 10(2a - 8y/5)^2
question 4:- (2x + 9y)^2 - (2x - 8y)^2

Answer 1

Answer:

ɧɛɛყą,

զųɛʂɬıơŋ 1 ⤵️⤵️

2x^2 - 3x)^2 + (5xy + 2x^2)^2 - 10xy^3

ąŋʂщɛγ :--

$(2x ^{2} - 3x) ^{2} + (5xy + 2x^{2}) ^{2} - 10xy ^{3} \\ (2x ^{2} ) ^{2} - 3x ^{2} + 5 {x}^{2} {y}^{2} + 2 {x}^{2} - 10x {y}^{3} \\ 2 {x}^{4} - 3 {x}^{2} + 5 {x}^{2} {y}^{2} + 2 {x}^{4} - 10x {y}^{3} \\ 4 {x}^{4} - 3 {x}^{2} + 5 {x}^{2} {y}^{2} - 10x {y}^{3} \\ 1 {x}^{2} - 5xy(answer)$

զųɛʂɬıơŋ 2 ⤵️⤵️

(a^2+ b^2) (a^2-b^2)

ąŋʂщɛγ :--

$( {a }^{2} + {b}^{2} )( {a}^{2} - {b}^{2} ) \\ {a}^{2} ( {a}^{2} - {b}^{2} ) + {b}^{2} ( {a }^{2} - {b}^{2} ) \\ {a}^{4} - {a}^{2} {b}^{2} + {a}^{2} {b}^{2} - {b}^{4} \\ ( {a}^{4} - {b}^{4} ) \\ ( {a}^{2} - {b}^{2} ) ^{2} \: \: \: \: \: \: \: (answer)$