Answer:
x₁ = -3√2 , x₂ = 3√2
Step-by-step explanation:
x² = 18 ⇔ x = √18 or x= -√18
√18 = √[9•2] = √9•√2 = 3•√2 = 3√2
Answer: Addition property of equality
Step-by-step explanation: You added the x to the other side, which is clearly using addition. Hope this help!
keeping in mind that
standard form for a linear equation means
• all coefficients must be integers, no fractions
• only the constant on the right-hand-side
• all variables on the left-hand-side, sorted
• "x" must not have a negative coefficient
3x + 4y = 10.
Answer:
54
Explanation: first you divide 216 by 4 and get 54 because all squares have equal sides
