question in thumbnail is different from the question in video...... this channel BS.

That’s is way too much working out for a problem that could be done by visual inspection. Either term must be less 35 (given the condition in n) so the values of n could only be 1,2 or 3 just by looking at it for 30 seconds

4x+49 should be n^3 while 4x-49 should be m^3, so n^3-m^3=49*2=98, so n^3=125 and m^3=27, so m=5 and n=3 => x=(+/-)19

(a-b)^3 = a^3 - b^3 -3ab(a-b) 8 = 98 - 3ab(2) ab = 15 (ab)^3 = 3375 a^3. b^3 = 3375 (4x+49)(4x-49) = 3375 16x^2 - 2401 = 3375 x^2 = 361 x = 19, -19

Harvard is Communist

😂😂😂😂😂😂😂

Love the symmetry of given euation, and let s = x + y, p = xy. Then, the equations are transformed to s^2 - p = 96, s + √p = 16. And the party goes on. s^2 - 96 = p = (16 + s)^2 = 256 - 32s + s^2, -96 = 256 - 32s, s = (256 + 96)/32 = 11. p = s^2 - 96 = 11^2 - 96 = 25. Finally, solve t^2 - 11t + 25 = 0 for t = x, y.

(25/4)^9/4= (5/2)^9/2= (625/16)×rt10/2 625rt10/32

❤❤❤❤ thank you

19

5-4 =( 1) 5+4=( 9 ). =19🎉😂

19 🎉

Hi Sir, could you let me know in what year this question was used for Stanford admission?

Interesting solution. We can handle it a little different way. 10000099998 = 10^10 + 10^5 - 2. Let t = 10^5, then 10000099998 = t^2 + t - 2 = (t - 1)(t + 2) So x^2 + 3x - 10000099998 = x^2 + 3x - (t - 1)(t + 2) = (x - (t - 1))(x + (t + 2)) = 0. x = t - 1, -(t + 2) i.e. x = 99999 or -100002

1

3 rd am 3pp

Whole number just means not decimal. I.e. same as integer

Hmmm yes. This math is made out of numbers.

Watts qué rayas has hecho

wow!

my answer is option a) 19

2720

1+4 = (1*4)+1 = 5 2+5 = (2*5)+2 = 12 3+6 = (3*6)+3 = 21 4+7 = (4*7)+4 = 32 .. 8+11 = (8*11)+8 = 96

1+4=1+1×4=1×5=5 2+5=2+2×5=2×6=12 3+6=3+3×6=3×7=21 8+11=8+8×11=8×12=96

96

89

2700

5^2=25，5^4=625， 5^5=3125， 3125^2=3100^2+25^2+3100*50=9610625+155000=9765625，5^11=5*9765625=48828125， 5^11-9=48828116

❤

9124

286😊😊😊😊😊😊😊😊

C=60

May be a simpler solution: 5^11=5^3Х5^3Х5^3Х5^2=125Х125Х125Х25 = 1000Х1000Х1000Х100/8/8/8/4 - 9=48,828,116

9124

60

thumbnail wrong

A simple alternative is to multiply the top and bottom by ( √32 + √24). Bottom will become easily equal to 8.. The top will become easily 56+2*√(32*24).This is 56+32√3. So the answer when divided by the 8 in the denominator is 7+4√3.

30

10 numbers 1 ,2 ,3 ,4 ,5 ,6, 7, 8, 9 & 0

1=one(three letters)=3 2=two(three letters)=3 3=three(five letters)=5 ... 6=six(three letters)=3

3

C=-5😂😂😂😂😂

96

30

21+11=32, 32+8=40

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