Multiply using suitable identty- 2 - -3 2 - -3

(2+√(3))(2 √(3)) =4 3=1 [ Using (a+b)(a b)=a^2 b^2 ] ...

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Expansion of (x^2 - y^2)

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Question

Multiply using suitable identty: $(2 + \sqrt{3}) (2 - \sqrt{3})$

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Solution

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Multiply 9x²+25y²+15xy+12x-20y+16 by 3x-5y-4 using suitable identity

(- 32)^{3} + (18)^{3} + (14)^{3}

simplify using suitable identity: (-32)*3+(14)*3+(18)*3

Calculate the value of the expression using suitable identities $4 \times 2 \times (3^{2} + 1^{2})$

Multiply:
(i) $\sqrt{3} (\sqrt{7} - \sqrt{3})$

(ii) $(\sqrt{5} - \sqrt{7}) \sqrt{2}$

(iii) $(3 \sqrt{2} - \sqrt{3}) (4 \sqrt{3} - \sqrt{2})$

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