Question

If x+y = 10 and x-y = 6 then what is x³ + y³ ?​

Answer 1

Step-by-step explanation:

x+y=10

×-y=6

STEP 2 YOU SOLVE USING ELIMINATION. IT IS IN SEQUENCE FROM THE TOP JUST SAY +Y -Y=0 ........ SO IT LEAVES U WITH X + X = 2X THIS TWO X IS EQUAL TO THE OTHER SIDE WHERE YOU SAY 10 + 6 =16. THEN YOU SUBSTITUTE TO GET VALUES OF X AND Y.

2x= 16 ×+y=10

x=8 8+y=10

y=2

NOW TO GET Xto the power of 3 and y to the power of fhree u SUBSTITUTE again.

x=8...... so x to the power of 3 is 8

$8 { }^{3} = 512$

$2 { }^{3} = 8$

add this to get 520

Answer 2

Answer:

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