(ii) (2x - 4) (5x + 3) + (7x - 3) (4x + 1)
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Answered by
5
Step-by-step explanation:
(2x-4)(5x+3)+(7x-3)(4x+1)
=10x^2+6x-20x-12+28x^2+7x-12x-3
=38x^2-19x-15
Answered by
2
Answer:
(2x-4)(5x+3)+(7x-3)(4x+1).
(2x-4)(5x-3).
2x(5x+3)-4(5x+3).
10x²+6x-20x-12.
(7x-3)(4x+1).
7x(4x+1)-3(4x+1).
28x²+7x-12x-3.
(2x-4)(5x+3)+(7x-3)(4x+1)=(10x²+6x-20x-12)-(28x²+7x-12x-3).
=10x²+6x-20x-12-28x²-7x+12x+3.
=-18x²-9x-9.
I think this is your answer.
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