Identify the numerical coefficients of terms (other than constants) in the following expressions:
(i) 5 − 3t 2 (ii) 1 + t + t 2 + t 3 (iii) x + 2xy+ 3y
(iv) 100m + 1000n (v) − p 2 q 2 + 7pq (vi) 1.2a + 0.8b
(vii) 3.14 r 2 (viii) 2 (l + b) (ix) 0.1y + 0.01 y 2
|
Row |
Expression |
Terms |
Coefficients |
|
(i) |
5 − 3t2 |
− 3t2 |
− 3 |
|
(ii) |
1 + t + t2 + t3 |
t t2 t3 |
1 1 1 |
|
(iii) |
x + 2xy + 3y |
x 2xy 3y |
1 2 3 |
|
(iv) |
100m + 1000n |
100m 1000n |
100 1000 |
|
(v) |
− p2q2 + 7pq |
− p2q2 7pq |
− 1 7 |
|
(vi) |
1.2a +0.8b |
1.2a 0.8b |
1.2 0.8 |
|
(vii) |
3.14 r2 |
3.14 r2 |
3.14 |
|
(viii) |
2(l + b) |
2l 2b |
2 2 |
|
(ix) |
0.1y + 0.01y2 |
0.1y 0.01y2 |
0.1 0.01 |