7. Simplify the following expressions and then find the numerical
Values for X=-2.
(1) 3(2x-4)+x oppon 2 +5
(ii) -2(-3x+5)- 2(x +4)
A
Answers
Answered by
0
Answer:
x2+3(2x-4)+5
=x2+6x-12+5
=x2+6x-7
now , when we put x=-2
(-2)2+6(-2)-7
=4-12-7
= -8-7
= -15
Answered by
0
Answer:
(-15)
Step-by-step explanation:
x^2+3(2x-4)+5
=x^2+6x-12+5
=x^2+6x-7
x= (-2 )
(-2)^2+6(-2)-7
=4 (-12) -7
= (-8) -7
= -15
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