Question

Bài 1: thực hiện phép tính

a,(-2)\(^5\):(-2)\(^3\)

b, (-y)\(^7\):(-y)\(^3\)

c, x\(^{12}\):(-x\(^{10}\))

d, (2x\(^6\)):(2x)\(^3\)

e, (-3x)\(^5\):(-3x)\(^2\)

f, (xy\(^2\))\(^4\):(xy\(^2\))\(^2\)

Answer 1

\(a,\left(-2\right)^5:\left(-2\right)^3=\left(-2\right)^{5-3}=\left(-2\right)^2=4\)

\(b,\left(-y\right)^7:\left(-y\right)^3=\left(-y\right)^{7-3}=\left(-y\right)^4=y^4\)

\(c,x^{12}:\left(-x\right)^{10}=x^{12}:x^{10}=x^{12-10}=x^2\)

\(d,\left(2x\right)^6:\left(2x\right)^3=\left(2x\right)^{6-3}=\left(2x\right)^3=8x^3\)

\(e,\left(-3x\right)^5:\left(-3x\right)^2=\left(-3x\right)^{5-2}=\left(-3x\right)^3=-27x^3\)

\(f,\left(xy^2\right)^4:\left(xy^2\right)^2=\left(xy^2\right)^2=x^2y^4\)