a2−b2+z2+8x−4y = a2−(x). Then x equals
b2+z2−8x−4y
b2+z2−8x+4y
b2−z2−8x+4y
−b2+z2+8x−4y
a2−b2+z2+8x−4y
= a2−(b2−z2−8x+4y)
∴ x=b2−z2−8x+4y
Classify into monomials, binomials and trinomials.
(i) 4y − 7z (ii) y2 (iii) x + y − xy
(iv) 100 (v) ab − a − b (vi) 5 − 3t
(vii) 4p2q − 4pq2 (viii) 7mn (ix) z2 − 3z + 8
(x) a2 + b2 (xi) z2 + z (xii) 1 + x + x2