Question

Answer 1

a: \(=\dfrac{32\cdot54}{25\cdot9\cdot63}=\dfrac{32}{25}\cdot\dfrac{6}{63}=\dfrac{32}{25}\cdot\dfrac{2}{21}=\dfrac{64}{525}\)

b: \(=\left(97-83\right)^2=196\)

c: \(A=\left(2x-y\right)\left(x+z\right)=\left(2,4-1,4\right)\cdot3=3\)

d: D=(x-1)(x^2-4x+4)

=2*(x-2)^2

=2