Question

Ex.19 va rog frumos!!(fara punctul a) ) va roggg

Answer 1

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Answer 2

$a) {4}^{5} + {4}^{8} - {4}^{4} = 1024 + 65536 - 256 = 66560 - 256 = 66304$

$b) {3}^{3} + {6}^{5} + {3}^{4} = 27 + 7776 + 81 = 7803 + 81 = 7884$

$c) {x}^{2} + {x}^{3} + {x}^{4} = {x}^{2}( \frac{ {x}^{2} }{ {x}^{2} } + \frac{ {x}^{3} }{ {x}^{2} } + \frac{ {x}^{4} }{ {x}^{2} }) = {x}^{2}(1 + x + {x}^{2})$

$d) {5}^{3} \times 6 + {5}^{4} \times 7 = 125 \times 6 + 625 \times 7 = 750 + 4375 = 5125$

$e) {3x}^{2}y + {2xy}^{2} + 4xy = xy( \frac{ {3x}^{2}y }{xy} + \frac{ {2xy}^{2} }{xy} + \frac{4xy}{xy}) = xy(3x + 2y + 4)$

$f) {7}^{5} \times x + {7}^{4} \times y + 49z = 16807x + 2401y + 49z$