Simplify combining like terms: 5x2y-5x2+3yx2-3y2+x2-y2+8xy2-3y2
Given: 5x2y-5x2+3yx2-3y2+x2-y2+8xy2-3y2
On combining the like terms and simplifying we get
⇒5x2y+3yx2–5x2+x2–3y2–y2–3y2+8xy2=x2y(5+3)+x2(-5+1)+y2(-3–1-3)+8xy2=x2y(8)+x2(-4)+y2(-7)+8xy2=8x2y–4x2–7y2+8xy2
Therefore, we get 8x2y–4x2–7y2+8xy2
Simplify combining like terms:
(i) 21b − 32 + 7b − 20b
(ii) − z2 + 13z2 − 5z + 7z3 − 15z
(iii) p − (p − q) − q − (q − p)
(iv) 3a − 2b − ab − (a − b + ab) + 3ab + b − a
(v) 5x2y − 5x2 + 3y x2 − 3y2 + x2 − y2 + 8xy2 −3y2
(vi) (3 y2 + 5y − 4) − (8y − y2 − 4)
Question 1 (v)
5x2y−5x2+3yx2−3y2+x2−y2+8xy2−3y2