Find the common factors of the given term.10 pq, 20qr, 30rp
Find the common factors of the given term.3x2 y3 , 10x3 y2, 6x2 y2z
Factorise the following expression:7x - 42
Factorise the following expression:6p - 12q
Factorise the following expression:7a2 + 14a
Factorise the following expression:-16z + 20z3
Factorise the following expression:20 l2m + 30 a l m
Factorise the following expression:5x2y - 15xy2
Factorise the following expression:10a2 - 15b2 + 20c2
Factorise the following expression:-4 a2 + 4 ab - 4 ca
∵ -4a2 = (-1) × 2 × 2 × a × a = (2 × 2 × a)[(-1) × a] 4ab = 2 × 2 × a × b = (2 × 2 × a)[b] 4ca = 2 × 2 × c × a = (2 × 2 × a)[c]
∴ -4a2 + 4ab - 4ca = (2 × 2 × a)[(-1) × a + b - c] = 4a[-a + b - c]
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