Question

23. 2x –9x² +11x +5,- x + 7 x? – 8x – 3,- *° +2x2.
21.
22. 3a + 2b - 6c, – 5b + 4a +3c, 8b-6a +4c.
3
3
+1
24. 5ax + 3by – 14cz, – 1lby – Tax – 9cz, Zax +6by
5. x² – 5x + 6, x² + 3x – 2, – x² + x +1, - x + 6x –
6. If a? = x² + y2 – z’,b= y2 + 2? – x?, c? = x2 +
show that, a’ + b3 + c? = x² + y2 + 2?.
7. If x = 5a + 7b +9c, y = b – 3a – 4c, z =c-2b+
that, x + y + z = 3(a + 2b + 2c).
btract (28 – 35) :
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1 plz help meee​

Answer 1

Answer:

this is very hard i can't do this

Answer 2

Answer:

hii

what is your name

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harsh_u0825