fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 4 months agoteachingsmander.xyzimagemessage-square65fedilinkarrow-up1770arrow-down117
arrow-up1753arrow-down1imageteachingsmander.xyzfossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 4 months agomessage-square65fedilink
minus-squareImplyingImplications@lemmy.calinkfedilinkEnglisharrow-up5·edit-24 months agoHere’s another example: A) -3 × (-3 + 3) = ? You can solve this by figuring out the brackets first. -3 × 0 = 0 You can also solve this using the distributive property of multiplication, rewriting the equation as A) -3 × (-3 + 3) = 0 (-3 × -3) + (-3 × 3) = 0 (-3 × -3) - 9 = 0 (-3 × -3) = 9 If (-3 × -3) didn’t equal 9 then you’d get different answers to equation A depending on what method you used to solve it.
Here’s another example:
A) -3 × (-3 + 3) = ?
You can solve this by figuring out the brackets first. -3 × 0 = 0
You can also solve this using the distributive property of multiplication, rewriting the equation as
A) -3 × (-3 + 3) = 0
(-3 × -3) + (-3 × 3) = 0
(-3 × -3) - 9 = 0
(-3 × -3) = 9
If (-3 × -3) didn’t equal 9 then you’d get different answers to equation A depending on what method you used to solve it.