Which shows equivalent expressions? a squared + 3 b minus 2 a squared = 3 a squared + 3 b minus 4 a squared a squared + 3 b minus 2 a squared = 3 a squared + 4 b minus 4 a squared Negative a squared + 3 b minus 2 a squared = 3 a squared + 3 b Negative a squared + 3 b + 2 a squared = 3 a squared + 4 b minus 2 a squared

whatvare the choices

step-by-step explanation:

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

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