Simplify the following expression. (3x + 4)(x − 7)
2 answers:
<h2>Answer:</h2>
The given problem is in algebra, this is because it has both variable and constant.
From question, we need to find the simplified form of the given expression. The simplified form denotes the form which is more understandable form.
Now, we need to multiply the brackets,
On solving,
Which cannot be solved further.
This expression has ‘x’ to the power 2 which will form second order equation when equated to zero.
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Answer:-
B
I hope it helps.
Answer:
x ≈ - 9.41, x ≈ - 6.59
Step-by-step explanation:
Given
x² + 16x + 62 = 0 ( subtract 62 from both sides )
x² + 16x = - 62
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(8)x + 64 = - 62 + 64
(x + 8)² = 2 ( take the square root of both sides )
x + 8 = ± ( subtract 8 from both sides )
x = - 8 ±
Hence
x = - 8 - ≈ - 9.41
x = - 8 + ≈ - 6.59