Question

giúp tớ bài này đc ko ạ?

Answer 1

a: \(x^2+12x+36=\left(x+6\right)^2\)

b: \(x^2+81+18x=\left(x+9\right)^2\)

c: \(x^2-16x+64=\left(x-8\right)^2\)

d:\(16-2x+\dfrac{1}{16}x^2=\left(4-\dfrac{1}{4}x\right)^2\)

e: \(9x^2-6xy+y^2=\left(3x-y\right)^2\)

f: \(16a^2-9b^2=\left(4a-3b\right)\left(4a+3b\right)\)