Question

plz solve them they are very urgent...plz,plz..​

Answer 1

Answer:

i)  ( x^3-x^2) + (x+1)

=  x^2(x+1)+1(x+1)

=(x^2+1)(x+1)

ii) (x^2-x) + (xy-y)

=x(x-1) +y(x-1)

=(x+y)(x-1)

iii) (acx^2+bcx) + (-adx-bd)

= cx(ax+b) -d(ax+b)

= (cx-d)(ax+b)

iv) 9a^2 + 12ab + 4b^2

= (3a+2b)^2

v)  (a^3+2a) + (-2a^2-4)

 = a(a^2+2) -2(a^+2)

= (a-2)(a^2+2)

vi)  (xy-yz) + (-xz +z^2)

=  y(x-z) -z(x-z)

= (y-x)(x-z)

vii)  (pxy + qrxy) + (-pz -qrz)

=  xy(p+qr) -z(p+qr)

=  (xy-z) (p+qr)

viii)  (x^2+ax+cx) + (ab+bc+bx)  

=  x(x+a+c) +b(a+c+x)

= (x+b)(a+c+x)

ix)  4x^2 -6xy+12x

=  2x(2x-3y+6)

x)  35a^2 - 21a^2 b +14a^2 b

=  7a^2 ( 5 - 3b + 2b)

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