Redukcja wyrazów podobnych. ( Klasa 6)
1) -3a - (-8b + 4a) + (-6b + 3a) =
2) -9c + (-6a) - (-5a + 7c) + (-8a + 4c) =
3) -(-8a + 3k) + (-8k - 3a) - (-9ab + 4a - (-3k) =
4) 3a razy (-2b) - (-6a + 3ab) +4a + (-4a + 3ab) + (-7ab) =
5) -4b + (-3a +4b) - (-8a - 3b) - (-3a kwadrat b) + (-3a) + (-4a kwadrat) =
Proszę jak najszybciej.
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1) -4a+2b
2)-9a-5c
3) 5a+9ab-14k
4)6a-13ab
5)2a+3b+3a²b-4a²
1) -3a - (-8b + 4a) + (-6b + 3a) = -3a+8b-4a-6b+3a= -4a+2b
2) -9c + (-6a) - (-5a + 7c) + (-8a + 4c) = -9c-6a+5a-7c-8a+4c= -9a-12c
3) -(-8a + 3k) + (-8k - 3a) - (-9ab + 4a - (-3k) =
=8a-3k-8k-3a-(-9ab+4a+3k)=5a-11k+9ab-4a-3k=a-14k+9ab
4) 3a *(-2b) - (-6a + 3ab) +4a + (-4a + 3ab) + (-7ab) =-6ab+6a-3ab+4a-4a+3ab= -6ab+6a
5) -4b + (-3a +4b) - (-8a - 3b) - (-3a kwadrat b) + (-3a) + (-4a kwadrat) =
= -4b-3a+4b+8a+3b+3a²b-3a-4a²= 2a+3b+3a²b-4a²
Mam nadzeje, że pomogłam
Pozdrawiam :-)