18×(-3)+(-2)×(-18) using distributive property
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4
18×(-3-2)
18×(-5)
-90
Please mark me brainliest (I really need it)
18×(-5)
-90
Please mark me brainliest (I really need it)
Answered by
10
Distributive Property :
Equation after arranging like terms together :
NOTE :
HERE FROM BOTH THE SIDES OF '+', WR TOOK OUT 18 COMMON.
SINCE, IN THE SECOND SIDE WE HAVE (-18) HENCE, WHEN WE TAKE OUT 18 COMMON, WE ARE LEFT WITH (-1) AS
HENCE, TO GET 18 COMMON, -1 IS LEFT AND WHEN (-1) IS MULTIPLIED BY (-2), WE GET (2) AS '-'×'-' = '+'
HENCE, ON SOLVING FURTHER,
= 18{(-3)+(2)} WE GET
= 18{(-1)}
= -18 .
-----------------------------------------
Alternative method ;
= 18 × (-3) + (-18) × (-2)
= -56 + (+36)
= -56 + 36
= -18.
Hence, From both the methods, we get same answer ;)
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