How do you multiply #(5 + x)(2x + -10)#?

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Answer 1 · 2016-07-29T05:54:11

#2x^2-50#

#(5+x)(2x+ -10)#

It must be written as

#(5+x)[2x+ (-10)]#

Remove the inner most bracket

#(5+x)[2x -10]#

Now Multiply

#10x+2x^2-50-10x#

#2x^2-50#