(1.5p + 1.2q) ^2- (1.5p - 1.2q)^2
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Answer:
(1.5p+1.2q)²-(1.5p-1.2q)²
(1.5p+1.2q)²-(1.5p-1.2q)² = [ (1.5p+1.2q)+(1.5p-1.2q) ] [ (1.5p+1.2q)-(1.5p-1.2q)]
---------------]Using the identity a²-b² = (a+b)(a-b)]
= (1.5p+1.5p+1.2q-1.2q) (1.5p-1.5p+1.2q+1.2q)
= (3p) (3q)
= 9pq
Step-by-step explanation:
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