Question

1)x^2+6x+8=
2)m^2-7mn+12n^2=
3)a^2-7ab+10b^2=

Answer 1

1)x^2+6x+8

x^2+4x+2x+8

x*(x+4)+2(x+4)

(x+2)*(x-4)
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2)m^2-7mn+12n^2

m^2-6mn+9n^2-mn+3n^2

(m-3n)^2-n(m-3n)

(m-3n)*(m-3n-n)

(m-3n)(m-4n)
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3)a^2-7ab+10b^2

a²-(2ab+5ab)+10b²

a²-2ab-5ab+10b²

a(a-2b)-5b(a-2b)

(a-2b)(a-5b)
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