Question

(0 , 6 a 2 + 0 , 6 b 3 ) ( 0 , 6 a 2 − 0 , 6 b 3 )
Представьте в виде многочлена

Answer 1

$(0.6a {}^{2} + 0.6b {}^{3} )(0.6a {}^{2} - 0.6b {}^{3} ) = 0.36a {}^{4} - 0.36b {}^{6}$

По формуле :

$(x - y)(x + y) = x { }^{2} - y {}^{2}$

Answer 2

$(0.6 {a}^{2} + 0.6 {b}^{3} )(0.6 {a}^{2} - 0.6 {b}^{3}) = (0.6 {a}^{2} ) {}^{2} - (0.6 {b}^{3}) {}^{2} = 0.36{a}^{4} - 0.36 {b}^{6}$