Question

Multiply and verify your result for x = 1, y = -2, and z = -1.

● -4y(2z-3x​)
​

Answer 1

Answer:

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Answer 2

STEP BY STEP EXPLAINATION:

GIVEN, -4y(2z-3x)

=-4y*2z+4y*3x

=-8yz+12xy

Verification, Put x = 1, y = -2 & z = -1

= -4y(2z-3x)=-4(_2)*[2(-1)-3(1)]

=8*[-2-3]

=8*-5

= -40. Equation (i)

Now,

=-8yz+12xy= -8*(-2)*(-1)+12*1*-2

= -16+(-24)

= -16-24

= -40. Equation (ii)

From equation (i) & (ii) we get,

-4y(2z-3x) = -8yz+12xy

Therefore, Hence verified.

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