Question

please solve this is urgent i will mark u as brainlist answer​

Answer 1

Question 1:-

$( - 4)^{4} \times ( \frac{5}{4} )^{4}$

$= (4)^{4} \times ( \frac{5}{4} ) ^{4}$

$= 5^{4}$

$= 625$

Question 2:-

$( \frac{2}{5})^{ - 2}$

$= ( \frac{5}{2})^{2}$

$= \frac{25}{4}$

Question 3:-

$0.000064$

$= 64 \times 10^{ - 6}$

$= 6.4 \times 10^{ - 5}$

Question 4:-

$2.39461 \times 10^{6}$

$= 2394610$

Question 5:-

$( { \frac{1}{4} })^{ - 2} + {( \frac{1}{2} )}^{ - 2} + ( \frac{1}{3} )^{ - 2}$

$= {4}^{2} + {2}^{2} + {3}^{2}$

$= 16 + 4 + 9$

$= 29$

Question 6:-

Two Identities are-

${(x + y)}^{2} = {x}^{2} + {y}^{2} + 2xy$

$(x - y)^{2} = {x}^{2} + {y}^{2} - 2xy$

Question 7:-

$8 {x}^{2} yz + 16x {y}^{2} z + 40xy {z}^{2}$

$= 8xyz(x + 2y + 5z)$

Question 8:-

${a}^{4} - {(b + c)}^{4}$

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

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

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

Question 9:-

$\frac{9 {x}^{2}y^{2}(3z - 24) }{27xy(z - 8)}$

$= \frac{xy \times 3 \times (z - 8)}{3 \times (z - 8)}$

$= xy$

Question 10:-

${x}^{2} + 11x + 18$

$= {x}^{2} + 2x + 9x + 18$

$= x(x + 2) + 9(x + 2)$

$= (x + 2)(x + 9)$

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