simplify −2(j^2− k) − 6(j^2 + 3k )

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1. Answer:-8j^2-16k

   Step-by-step explanation:

   First step:-2j^2-(-2)k=-2j^2+2k

   Second step:

   -6(j^2+3k) use the formula a(b+c)=ab + ac

   a=-6 b=j^2 c=3k

   -6j^2+(-6).3k

   -6j^2-6.3k=-6j^2-18k because we multiplied 6×3=18

   So we gather the whole equation And simplify

   -2j^2+2k-6j^2-18k

   -2j^2-6j^2 +2k-18k(add like terms)6+2=8

   -8j^2+2k-18K (subtract Like terms 18-2=16)

   And the answer will give -8j^2-16k

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