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all you need to do is multiply out the brackets. you solve them by using the FOIL method: Firsts: (the first number in each bracket) 3m x 8m = 24m² Outsides: (the numbers on the outer edges of the equation) 3m x 7 = 21m Insides: (the numbers on the inner edges of the equation) -1 x 8m = -8m Lasts: (the last number in each bracket) -1 x 7 = 7 you then put all the answers together into one equation so: 24m² + 21m - 8m + 7 and finally, collect like terms: 24m² + 13m + 7 hope i helped
this completely depends im sorry to tell you.. But... if your just getting it into simplest form multiply 3m-1 by 8m+7 thus becoming 24m² + 21m -8m -7 then you simplify it into 24m² + 13m - 7 and then there's quadratic formula or completing the square. For Quadratic formula you find A B and C 24=A 13=B -7=C (Why? standard form is ax²+bx+c=0) and quadratic formula is X= -b ± ?(b² - 4ac) (In the radical[ square root]) (through this, X represents 'm') ----------------------- ( ± = plus/minus) (over 2a) 2a thus... X = -13 ± ?(169-168) over 48 Then it's X= -1/4th or 7/24th If it's solving for 0 then you split it into 2 halves 3m-1=0 and 8m+7=0 Then you solve for M thus ... M= -1/3 or -7/8 /\ /|\ | | I think the solving for 0 is more accurate... so forget the first part i think... i just dont want to go through and delete my work D:
Math HELP ASP Please??? who helps me get 10pt the best one? (3m-1)(8m+7) solve explain show steps by step thanks 10 oints to the best one
Math HELP ASP Please??? who helps me get 10pt the best one?
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