Question

factorise 14a×3+21a×4b-28a×2b×2​

Answer 1

Step-by-step explanation:

STEP1:Equation at the end of step 1

(((14•(a4))•b)-((21•(a3))•(b2)))+((22•7a2)•b3)

STEP 2 :

Equation at the end of step2:

(((14•(a4))•b)-((3•7a3)•b2))+(22•7a2b3)

STEP 3 :

Equation at the end of step3:

(((2•7a4) • b) - (3•7a3b2)) + (22•7a2b3)

STEP4:

STEP5:Pulling out like terms

 5.1     Pull out like factors :

   14a4b - 21a3b2 + 28a2b3  =   7a2b • (2a2 - 3ab + 4b2)