please solve question number 4 all the parts
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1) (5a-8b)(3a+12b)=
=15a^2+20ab-24ab-96b^2
=15a^2-4ab-96b^2 answer
2) (6x^2+11x-3)(2x-5)
=12x^3+22x^2-6x-5x^2-55x+15
=12x^3+17x^2-61x+15 answer
=15a^2+20ab-24ab-96b^2
=15a^2-4ab-96b^2 answer
2) (6x^2+11x-3)(2x-5)
=12x^3+22x^2-6x-5x^2-55x+15
=12x^3+17x^2-61x+15 answer
arya64:
thankq sister
my pleasure
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