Question

Expand using appropriate identities for (2x-5d)^2,(98)^2,(y-5)(y+5),(3x)^2-5^2,(2m+n)(2m+p),203×197

Answer 1

Answer:

(2) (m−4)(m+6) (3) (p+8)(p−3) (4) (13+x)(13−x) (5 ) (3x+4y)(3x+5y) (6) (9x−5t)(9x+3t) (7) (m+23)(m− 73) (8) (x+1x)(x−1x) (9) (1y+4)(1y−9) .