(a) Identify terms that contain x and give the coefficient of x. (i) y 2 x + y (ii) 13y2 – 8yx (iii) x + y + 2 (iv) 5 + z + zx (v) 1 + x + xy (vi) 12xy2+25 (vii) 7x+xy2
(b) Identify terms which contain y 2 and give the coefficient of y 2 . (i) 8 – xy2 (ii) 5y 2 + 7x (iii) 2x 2 y – 15xy2 + 7y2
(b) Identify terms which contain y 2 and give the coefficient of y 2 . (i) 8 – xy2 (ii) 5y 2 + 7x (iii) 2x 2 y – 15xy2 + 7y2
Solution and Explanation
(a)
(i)y2x+y : Term with factor x - y2x Coefficient of x - y2
(ii) 13y2–8yx : Term with factor x - -8yx Coefficient of x -8y
(iii)x+y+2 : Term with factor x - x Coefficient of x - 1
(iv)5+z+zx : Term with factor x - zx Coefficient of x - z
(v) 1+x+xy : Term with factor x - x xy Coefficient of x - 1 y
(vi)12xy2+25 : Term with factor x - 12xy2 Coefficient of x - 12y2
(vii)7x+xy2 : Term with factor x - xy2 7x Coefficient of x - y27
(b)
(i)8– xy2 : Term contains y2 -xy2 Coefficient of y2-x
(ii)5y2+7x : Term contains y2-5y2 Coefficient of y2-5
(iii)2x2y–15xy2+7y2 : Term contains y2 -15xy2+7y2 Coefficient of y2 -15x7
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