Question

factorise the given expression and find HCF.
x²-25y²,x+10xy+25y² and x²+2xy-15y²​

Answer 1

Step-by-step explanation:

I) x^2-25y^2=(x+5y)(x-5y)

ii)x+10xy+25y^2=(x+5)^2

iii) x^2+2xy-15y^2=x^2-5xy+3xy-15y^2

=x(x-5y)+3y(x-5y)

=(x+3y)(x-5y)