State whether the root 2 X square + 7 x + 5 root 2 =0 is the quadratic equation in X. Hint d=(√3+1) ^2-4√3=(√3-1) ^2.
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Step-by-step explanation:
√2x²+7x+5√2=0
√2x²+5x+2x+5√2=0
√2x²+5x+√2*√2x+5√2=0
x(√2x+5)+√2(√2x+5)
(x+√2)(√2x+5)=0
THE GIVES (X=–√2) or(x=–5√2)
USING THE FACTORISATION METHOD
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