4(x+3)²=25(x_2)² solve the following by quadratic equation
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Answered by
0
Answer:
4(x + 3)^2 = 25(x - 2)^2
4(x^2 +9 + 6x) = 25( x^2 + 4 - 4x )
4x^2 + 36. + 24x = 25x^2 + 100 - 100x
21x^2 + 64 - 124x = 0
=> 21x^2 - 124x + 64 = 0
This is the quadratic equation:
just solve and u will get the answer.
Formula: x = -b +- √b^2 - 4ac
2a
Answered by
0
Step-by-step explanation:
4(X+3)²=25(x-2)²
or,4(x²+6x+9)=25(x²-4x+4)
or,4x²+24x+36=25x²-100x+100
or,0=25x²-4x²-100x-24x+100-36
or,0=21x²-124x+64
or,0=(7x-5)(3x-16)
either,. or,
(7x-5)=0. (3x-16)=0
or, 7x=5. or,3x=16
or,X=5/7. or,X=16/3
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