Identify the numerical coefficient of term (other than constant) in the following expression: x + 2xy + 3y

Identify the numerical coefficient of term (other than constant) in the following expression:

x + 2xy + 3y

Numerical

Expression	Term	Coefficient
x + 2xy + 3y	x 2xy 3y	1 2 3

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Subtract the second expression from the first:

5a + b, - 6b + 2a

Subtract the second expression from the first:

x + 2y + z, - x - y - 3z

Simplify: -1[a - 3{b - 4(a - b - 8) + 4a} + 10]

x + (−x) = 0

h is a factor of 2π (h + r).

Write the greatest common factor in the following terms.

2xy, –y², 2x²y

Factorise the following expression.

– xy – ay

Factorise the following expression.

l²m²n – lm²n² – l²mn²

Identify the numerical coefficient of term (other than constant) in the following expression:

1 + t + t² + t³

Identify term which contain y² and give the coefficient of y².

5y² + 7x