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just plug them in.
come on, you can finish the rest...
(-5/2)*((15/4) - (10/4))
(-5/2)*(5/4) = -25/8
mikevucina do you get how to do it?
i do know
do you know the order of operations?
what comes first parentheses or multiplication? pop quiz lol
okay 3x squared when x= -1.5 is 6.25?
what comes first, exponents or multiplication?
btw im just learning this myself with you
bahrom do you square the integer first and then multiply by 3?
square number first then integer i think
i think you square the x (which is -1.5 and then multiply by 3
unless its (3x)squared
because parentheses comes before exponents
3x squared when x= -1.5
depends on the parenthesis
question is 3x squared + 5x - 12 when x= -1.5
are there parentheses?
so exponents come first, -1.5^2 = what?
so now rewrite the equation
with the new piece of info
6.75 + 5x - 12
boom, and we can go ahead and do the 5x, its 5 * 2.25
i mean 5 *x or 5* -1.5
can you do that and then rewrite the equation with the new info?
the answer should be 19.25 but i got 11.25?
hmmm, guess we need help, im asking bahrom
can you guys draw out the actual question?
question is 3x2 + 5x - 12 where x = -1.5
howd you make it -5 in the second line?
5*(-1.5) that negative in front of -1.5 makes the whole thing negative
answer is supposed to be 19.25
ok, so that looks good. mike youre saying that the answer should be 19.25? thats weird, bahrom looks right to me, i mean it makes sense
it says that in the book
and bahroom thats the equation
the book's wrong
mike does bahrom's answer make sense to you?
ye it does
if so, forget the book
and show your teacher
thanks bahrom, im giving him a medal for this, for sure
lol finally haha medals...
lol win! good luck mike, cya around