How do you simplify -8( 4+ 5b ) + 9( 1+ 7b )−8(4+5b)+9(1+7b)?
3 Answers
Explanation:
whichever alternative is required
Explanation:
we use the distributive laws, then simplify by collecting like terms
which can be factorised if required
Explanation:
"to simplify distribute brackets and collect like terms"to simplify distribute brackets and collect like terms
rArr-8(4+5b)+9(1+7b)⇒−8(4+5b)+9(1+7b)
=color(red)(-32)color(blue)(-40b)color(red)(+9)color(blue)(+63b)=−32−40b+9+63b
=color(blue)(+63b)color(blue)(-40b)color(red)(-32)color(red)(+9)=+63b−40b−32+9
=color(blue)(23b)color(red)(-23)=23b−23