Find the product-2 x2-3 x-7 -3 x2-5 x-4

By horizontal method: (2x2+3x 7) #215;(3x2 5x+4)=2x2(3x2 5x+4)+3x(3x2 5x+4) 7(3x2 5x+4)=6x4 10x3+8x2+9x3 15x2+12x 21x2+35x 28=6x4 x3 28x2+47x 28 ...

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Laws of Exponents

Find the prod...

Question

Find the product: $(2 x^{2} + 3 x - 7) \times (3 x^{2} - 5 x + 4)$

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Solution

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Find each of the following products:

$(2 x^{2} + 3 x - 7) \times (3 x^{2} - 5 x + 4)$

Factorise:

$(i) 4 \sqrt{3} x^{2} + 5 x - 2 \sqrt{3}$

$(i i) 7 \sqrt{2} x^{2} - 10 x - 4 \sqrt{2}$

(3 x^{2} - \frac{1}{5} x + \frac{7}{3}) + (- \frac{1}{4} x^{2} + \frac{1}{3} x + \frac{1}{3} x - \frac{1}{6}) + (- 2 x^{2} - \frac{1}{2} x + 5)

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