The Total solution for NCERT class 6-12
(iii) 7a2┬а+ 14a(iv) -16z + 20z3(v) 20l2m + 30alm(vi) 5x2y тАУ 15xy2(vii) 10a2┬атАУ 15b2┬а+ 20c2(viii) -4a2┬а+ 4ab тАУ 4ca(ix) x2yz + xy2z + xyz2(x) ax2y + bxy2┬а+ cxyz
(i) 7x тАУ 42 = 7(x тАУ 6)(ii) 6p тАУ 12q = 6(p тАУ 2q)(iii) 7a2┬а+14a = 7a(a + 2)(iv) -16z + 20z3┬а=4z(-4 + 5z2)(v) 20l2m +30alm = 10lm(2l + 3a)(vi) 5x2y тАУ 15xy2┬а= 5xy(x тАУ 3y)(vii) 10a2┬атАУ15b2┬а+20c2┬а=5(2a2┬атАУ3b2┬а+4c2)(viii) -4a2┬а+4ab тАУ 4ca = 4a(-a + b тАУ c)(ix) x2yz + xy2z + xyz2┬а=xyz(x + y + z)(x) ax2y + bxy2┬а+ cxyz = xy(ax + by + cz)