The value of expression 20 xy -4 y -3 x- when x -2 and y -1 is 50 -A- TrueB- False

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Addition of Negative Numbers (-X-Y = -(X+Y))

The value of ...

Question

The value of expression 20xy + 4y + 3x, when x = 2 and y = 1 is 50.

True

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False

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The value of the expression $x^{2} - 5 x + 4 w h e n x = - 3$ is,
$(- 3)^{2} - 5 \times - 3 + 4 = 9 + 15 + 4 = 28$

The value of the expression $(2 x)^{2} + 5 x$ for $x = 3$ is $51$ .

State whether the given statement is true or false.
The value of the expression $(2 x)^{2} + 5 x$ for $x = 3$ is 51.

4 x^{2} + 6 x + 3 y + 7

x^{2}

x

y

x = 2, y = 15 a n d z = 20

y^{x}

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