4x² + 3x + 7
Split the middle term
Answers
Given : 4x²+3x+7
To Find : split by middle term
Solution:
Looks mistake in data as split by middle term is not possible as
Middle term is positive
and multiplications is also positive ( 4 * 7 = 28)
Hence both terms need to be positive
and maximum possible multiplication is
1.5 * 1.5 = 9/4
also 3² - 4(4)(7) < 0 hence roots are not real
Question Could have been
4x²+3x-7
Then
4x² -4x + 7x - 7
= 4x(x - 1) + 7(x - 1)
= (4x + 7)(x - 1)
4x²+3x-7 = (4x + 7)(x - 1)
if 4x²-3x-7
Then
4x² +4x - 7x - 7
= 4x(x +1) - 7(x - 1)
= (4x - 7)(x + 1)
4x²-3x-7 = (4x - 7)(x + 1)
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