simplify (1.5x - 4y) (1.5x + 4y + 3 ) -4.5x + 12y
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Answer:
2.25x^2-1.6y^2
Step-by-step explanation:
=> (1.5x-4y)(1.5x + 4y + 3) -3(1.5x - 4y)
=>(1.5x - 4y)(1.5x + 4y + 3 - 3)
=>(1.5x - 4y)(1.5x+4y)
=>(1.5x)square - (4y)square
=>2.25x^2- 1.6y^2
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