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Mathematics 8 Online
OpenStudy (anonymous):

(1 - 7x)(1 + 9x)

mathslover (mathslover):

\[\huge{(a+b)(c+d)=a(c)+a(d)+b(c)+b(d)}\]

Parth (parthkohli):

Hey there! Welcome to OS!

Parth (parthkohli):

The key to success is \(\Huge \text{F.O.I.L}\)

Parth (parthkohli):

\( \color{Black}{\Rightarrow (1 - 7x) ( 1+ 9x) = 1( 1+ 9x) -7x(1 + 9x)}\)

Parth (parthkohli):

Need any more help?

OpenStudy (anonymous):

@armidadiaz70 use wat maths told u

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