Question

if x=4, y=-2 and z=3 find the value of: (a) 2xy+2yz+2zx-2​

Answer 1

Answer:

2x4x-2 + 2x-2x3. + 2x3x4 -2

-16-12+24-2

-30+24

-6

Hope it will help you.

Answer 2

Answer:

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Step-by-step explanation:

$2xy+2yz+2zx-2 \\ 2(4)( - 2) + 2( - 2)(3) + 2(3)(4) - 2 \\ - 16 + ( - 12) + 24 - 2 \\ - 16 - 12 + 24 - 2 \\ - 6$