#160; #160;a #160;+ #160;b #160;c #160;+ #160;d #160; #160;a2 #160;+ #160;b2= #160;a #160;+ #160;b #160;c #160;+ #160;d #1 ...

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Polynomials

a+bc+d-a2+b2

Question

(a + b) (c + d) $-$ a² + b²

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Solution

$(a + b) (c + d) - a^{2} + b^{2} = (a + b) (c + d) - (a^{2} - b^{2}) = (a + b) (c + d) - (a + b) (a - b) = (a + b) [(c + d) - (a - b)] = (a + b) (c + d - a + b)$

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Similar questions

(a + b) (c + d) - a^{2} + b^{2}

(a + b) (c + d) - a^{2} + b^{2}

a, b

c

\frac{a}{c} =

I f x + i y = \sqrt{\frac{a + i b}{c + i d}}, t h e n (x^{2} + y^{2})^{2}

a^{2} + b^{2} = c^{2} + d^{2}

a^{2} + d^{2} - a d = b^{2} + c^{2} + b c

\frac{a b + c d}{a d + b c}

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