Question

me ajudem pff
MONÔMIOS!!
A) (1,5x²y) • (-0,3 xy²)
B) (-2,6 abc) • (-1,2 ab)
C) (-ac) • (-a⁴bc²)
D) (-0,1y³) • (+0,2y⁴)

POR FAVORRRRR​

Answer 1

Resposta:

A) (1,5x²y) • (-0,3 xy²)

$\left(1.5x^2y\right)\left(-0.3xy^2\right)\\-1.5x^2y\cdot \:0.3xy^2\\-0.45x^2yxy^2\\-0.45x^3yy^2\\-0.45x^3y^3$

B) (-2,6 abc) • (-1,2 ab)

$\left(-2.6abc\right)\left(-1.2ab\right)\\2.6abc\cdot \:1.2ab\\3.12aabbc\\3.12bca^{1+1}b\\3.12bca^2b\\3.12ca^2b^{1+1}\\3.12ca^2b^2$

C) (-ac) • (-a⁴bc²)

$\left(-ac\right)\left(-a^4bc^2\right)\\aca^4bc^2\\a^5c^3b$

D) (-0,1y³) • (+0,2y⁴)

$\left(-0.1y^3\right)\left(0.2y^4\right)\\-0.1y^3\cdot \:0.2y^4\\0.02y^3y^4\\-0.02y^{3+4}\\-0.02y^7$