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@123666 how do I explain that???
I got B I plugged in 2 numbers that would work A=2 and b=1 and plugged in to see which have the highest answer
try multiplying them all out
I need to explain it and all of its steps and I'm not sure how to do that
multiply the first two out
and then what?
Work 2(1+2) = 6 (1+2)^2 = 9 2^2 + 1^2 = 5 2^2 - 1^2 = 3
then compare them. what did you get?
*when you multiplied
they are the same except one is multiplying by 2 and the other is multiplying by ^2
Would something like "I found 2 numbers that worked with the criteria I was given and plugged them into each answer choice to see which one gave me the largest answer" work?? Or does it have to be step by step?
they are not the same. the first one is multiplied by 2. Distribute the 2. The second is raised to the power of 2. \((a + b)² = (a + b)(a + b)\). You can FOIL that
Step by step Im pretty sure
One is multiplying by 2 and the other is squaring the answer. It makes a big difference
yep! I see now how you got that.
i didn't mean they ARE the same i meant they LOOK the same exceptt for that
tbh @Utterly_Confuzzled strategy is what you would want to use on the actual ACT
yeah, true. ok! So thats basically how I would solve the problem???
what @Utterly_Confuzzled said ? And it is B?
yeah. Is plugging in numbers what you're looking for in the way of an explanation.
Yes it's B And I think they meant finding two numbers that work and just plugging them in
Okay! Thanks to both of you
the only thing I'd suggest with plugging in numbers is to not use 1 or 0. In this case it works out, but they can be wonky depending on the scenario
okay, but what utterly said should be sufficient?? In explaining my answer?
@peachpi is right, it's normally safest not to use 0 or 1 And I believe it should suffice.
Its for a grade but its ACT prep...
are you looking for an algebraic explanation, or a "this is how I would solve the problem" explanation
@peachpi this is how Id solve the problem
yeah just plug in numbers
ok- thanks again for your help:-)
well you want to say you plugged them into all four options and B was the highest
okay. Thanks, that helped!