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guajiro [1.7K]
3 years ago
11

Fill in the missing coefficients in the expansion of the binomial (2x^2+y^2)^4

Mathematics
2 answers:
kozerog [31]3 years ago
7 0

Answer:

Given Expression (2x^2+y^2)^4

To find: Expansion of expression

Consider,

(2x^2+y^2)^4\\\\\implies((2x^2+y^2)^2)^2

using identity, (a+b)^2=a^2+b^2+2ab  we get,

\implies((2x^2)^2+(y^2)^2+2\times(2x^2)\times(y^2))^2

\implies(4x^4+y^4+4x^2y^2)^2 (using law of exponent, (x^a)^b=x^{ab} )

Now using identinty, (x+y+z)^2=x^2+y^2+z^2+2xy+2yz+2xz we get,

\implies(4x^4)^2+(y^2)^2+(4x^2y^2)^2+2(4x^4)(y^2)+2(y^2)(4x^2y^2)+2(4x^2y^2)(4x^4)\\\\\implies16x^8+y^4+16x^4y^4+8x^4y^2+8x^2y^4+32x^8y^2

Helga [31]3 years ago
6 0
The expansion of the binomial:
( 2 x² + y² ) ^4 = 
(2 x^{2} ) ^{4} + 4 * (2 x^{2} ) ^{3}* y^{2} + 6 * ( 2 x^{2} ) ^{2}*( y^{2}) ^{2}  +4*2 x^{2} *( y^{2}) ^{3}+( y^{2}) ^{4}=
=16 x^{8}+32 x^{6} y^{2}+24 x^{4}  y^{4}  + 8  x^{2}  y^{6}+ y^{8}
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