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Add 2 mn, 4 mn, 8 mn, 6 mn .
2 + (4) + 8 + (6) = 0
Add a + b – 1, b – a + 1, 1 – 26 .
Sum = (1 – 1)a + (1 + 1 – 2)b – 1 + 1 + 1 = 1
Add \(4x^{2}y, 3x^{2}y, 7xy^{2}, 7xy^{2}\) .
Simplify : p + (p – q) + q + (q – p)
p + p – q + q + q – p = p + q
Simplify : \(z^{2} + 11z^{2} – 5z – 11z^{2} + 5z\)
Subtract – xy from xy .
xy – (xy) = xy + xy = 2xy
Subtract \(y^{2}\) from \( – 5y^{2}\) .
What should be added to \(x^{2} + y^{2}\) to get \( x^{2} + y^{2} + 2xy\)?
What should be subtracted from \( x^{2} + y^{2} – 2xy\) to get \(x^{2} + y^{2}\)?
Find the value of the expression x + 2 for x = 2 .
(2) + 2 = 0
Find the value of the expression 4x – 3 for x = 1 .
4(1) – 3 = 1
Find the value of the expression \(100 – 10 x^{3}\) for \(x = 0\) .
100 – 10(0)3 = 100
Find the value of the expression 5n – 3 for n = 1 .
5(1) 3 = 8
Find the value of the expression \(x^{2} + 2x + 1 for x = – 1\).
Find the value of the expression a + b for a = 1, b = 2.
1 + 2 = 3
Find the value of the expression \(a^{2} – 2ab + b^{2}\) for a = 1, b = 1.
Find the value of the expression \(a^{2} – b^{2}\) for a = 2, b = 1.
Find the value of the expression \(a^{2} + b^{2}\)for a = 1, b = 0 .
Find the value of the expression \(a^{2} + ab + 1 \) for a = 0, b = 1.
Find the value of the expression 3x + 5 (x – 2) for x = 2 .
3(2)+ 5(2 – 2) = 6
Find the value of the expression \(z^{3} – 2(z – 10)\) for z = 10 .
Find the value of the expression – x + 2 for x = 2 .
[ (2) + 2 ] = 2 + 2 = 4
Find the value of the expression 3p + 7 for p = 2 .
3(2) + 7 = 1
Find the value of the expression \(a^{3} + b^{3} + c^{3} – 3abc\) for a = 2, b = 3, c = 4 .
If the value of the expression \(x^{2} – 5x + k\) for x = 0 is 5, then the value of k is