Question

7. The sides of a triangle are 2x + 3y, x + 5y and 7x - 2y. Find its perimeter.
8. The two adjacent sides of a rectangle are 6a + 9b and 8a - 4b. Find its perimet
9. Subtract the second expression from the first :
402a + b, a + b
(ii) - 2b + 2c, b + 3c
Yili) 5a + b, - 6b + 2a
Vivt 23 - 1 + a, 3a - 222
(v) p + 2,1
vit x +
x + 2y + z, - x - y - 32
(vii) 3a2 - 8ab - 262, 3a2-4ab + 6b2
(viii), 4pq - 6p2 - 207. 9p2
(ix) 10abc, 2a + 2abc - 462
Lx) a2 + ab + 2 af - of
10. Subtract:
(i) 4x from 8 - X
(ii) - 8c from C + 3d
(iii) - 5a - 2b from b + 6C
(iv) 4p + p from 3p2 - 8p
(v) 5a - 3b + 2c from 4a - b - 20
(vi) - xy + yz - zx from xy - yz + xz
(vii) 2x2 - 7xy - y from 3x2 - 5xy + 3y2
(viii) 2 - 3ab - 6b2 from 2b2 - a2 + 2ab
(ix) 4x2 - 5x+y + y2 from - 3y2 +
3y2 + 5xy2 - 7x2 - 9xy
(x) 6m² + 4m2 + 7m - 3 from 3m + 4​

Answer 1

Answer:

is the ans or q

Step-by-step explanation:

Answer 2

Step-by-step explanation:

answer for 7th question