Question

. If x = - 4 then find the value of 5 x2

– 3x + 7​

Answer 1

Step-by-step explanation:

LET X BE 4

SO,

$5 \times 2 - (3 \times 4) \ + 7$

$5 \times 2 - 12 + 7$

$10 - 12 + 7$

$- 2 + 7$

$5 \: i s \: the \: answer$

Answer 2

Answer:

f(x)=5x2-3x+7

f(-4)=5*(-4)2-3*-4+7

=5*16+12=7

=80+19

=99

Step-by-step explanation:

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