Question

Calcule:
a) (a² + 1)²
b) (4x² + 7)²
c) (2x³+ 3y²)²
d) (a² + b²)²
e) (x + 2y³)²
f) (mn² + 4)²
g) (x²y + xy²)²
h) (xy + z³)²

Answer 1

a) (a² + 1)² = A^4 + 2A² + 1

b) (4x² + 7)² = 16X^4 + 56X² + 49

c) (2x³+ 3y²)² = 4X^6 + 12X³.Y² + 9Y^4

d) (a² + b²)² = a^4 + 2a².b² + b4

e) (x + 2y³)² = x² + 4xy³ + 4y^6

f) (mn² + 4)² =  m².n^4 + 2mn² + 16

g) (x²y + xy²)² = x^4y² + 2x³y³ + x²y4

h) (xy + z³)²  = x²y² + 2xyz³ + z^6