please solve the 6and 7 no. plz...
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7)a)10ab-5cb-10ad+5cd
=10ab-10ad-5cb+5cd
=10a(b-d)-5c(b-d)
=(b-d)(10a-5c)
b)ab²-bc²-ab+c²
=ab²-ab-bc²+c²
=ab(b-1)-c²(b-1)
=(b-1)(ab-c²)
c)3ac+2bc+3ad+2bd
=3ac+3ad+2bc+2bd
=3a(c+d)+2b(c+d)
=(c+d)(3a+2b)
d)axy²+3x+2a²y²+6a
=axy²+3x+2a²y²+6a
=x(ay²+3)+2a(ay²+3)
=(ay²+3)(x+2a)
e)7ab+9cd+7ad+9bc
=7ab+7ad+9cd+9bc
=7a(b+d)+9c(b+d)
=(b+d)(7a+9c)
f)x^4+6x²y+3x³+18xy
=x^4+3x³+6x²y+18xy
=x³(x+3)+6xy(x+3)
=(x+3)(x³+6xy)
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Answer in attachment..
Hope it will help you Mark me as brainliest plzz .
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